miller60 writes "There's a vigorous debate among cloud pundits about whether the apparent loss of all Sidekick users' data is a reflection on the trustworthiness of cloud computing or simply another cautionary tale about poor backup practices. InformationWeek calls the incident 'a code red cloud disaster.' But some cloud technologists insist data center failures are not cloud failures. Is this distinction meaningful? Or does the cloud movement bear the burden of fuzzy definitions in assessing its shortcomings as well as its promise?"

MikeChino writes "At first glance, e-readers offer a great set of benefits over paper-bound books – they’re light, versatile, and a great alternative to lugging around a tote full of dead tree tomes on your next trip. However these new reading mediums have one glaring fault — can you imagine the frustration of running out of juice mid-sentence and halfway through Infinite Jest? LG's new solar e-book aims to address this issue by harnessing the sun's rays to power its display. The device features a 10 centimeter wide thin-film photovoltaic panel that can power the reader for a full day's worth of reading after 4-5 hours spent sitting in the sun."

Expanding on the T-Mobile data loss mentioned in an update to an earlier story, reader stigmato writes "T-Mobile's popular Sidekick brand of devices and their users are facing a data loss crisis. According to the T-Mobile community forums, Microsoft/Danger has suffered a catastrophic server failure that has resulted in the loss of all personal data not stored on the phones. They are advising users not to turn off their phones, reset them or let the batteries die in them for fear of losing what data remains on the devices. Microsoft/Danger has stated that they cannot recover the data but are still trying. Already people are clamoring for a lawsuit. Should we continue to trust cloud computing content providers with our personal information? Perhaps they should have used ZFS or btrfs for their servers."

storagedude points to this article at Enterprise Storage Forum which argues that cloud-based storage options have fatal limitations for both businesses and individuals: "The article makes the argument that high volumes of data and bandwidth limitations make external cloud storage all but useless for enterprises because it could take months to restore the data in a disaster. It also appears to be a consumer problem — the author spent three months replicating 1TB of home data via cable modem to an online backup service." Seems like those off-site incremental storage firms could dispatch a station wagon full of tapes, for enough money. Update: Here's another reason, for Sidekick users: reader 1ini was one of several to point out an alert from T-Mobile that "...personal information stored on your device — such as contacts, calendar entries, to-do lists or photos — that is no longer on your Sidekick almost certainly has been lost as a result of a server failure at Microsoft/Danger."

Etylowy writes "Over the years I have repaired my own PC and those belonging to family and friends many, many times. While in most cases it turned out to be restoring a system after malware/the user/Windows made a mess, or simple cases of 'follow the smell of smoke and molten plastic,' there were some nasty ones where the computer mostly works. By 'mostly,' I mean: you can boot it up, it might even work for a while, but will crash way too often to blame it all on Microsoft — what do you do then? Once you strip it of any extra hardware (which, with today's motherboards that have pretty much everything integrated, might not be an option) you are left with the CPU, motherboard, graphics card, RAM and HDD. You can test the HDD, you can run memtest86+ to check the RAM, but how do you go about testing the CPU, motherboard and graphics card trio to find which is to blame? Replacing them one by one isn't really an option. Do you know of any software that would help the way memtest helps with RAM?"

eldavojohn writes "Modern processors rely on wires mere nanometers wide, and now Yale physicists have successfully measured a theoretical 'persistent current' that flows through them when they are formed into rings. The researchers predict this will help us understand how electrons behave in metals — more specifically, the quantum mechanical effect that influences how these electrons move through the metals. Hopefully, this work will shed new light on what dangers (or uses) quantum effects could have on classical processors as the inner workings shrink in size. The breakthrough involved rethinking how to measure this theoretical effect, as they previously relied on superconducting quantum interference devices to measure the magnetic field such a current would create — complicated devices that gave incorrect and inconsistent measurements. Instead, they turned to nothing but mechanical devices, known as cantilevers ('little floppy diving boards with the nanometer rings sitting on top'), that yielded measurements with a full order of magnitude more precision."

chrnb writes "Last year, the Danish island of Samso (pronounced SOME-suh) completed a 10-year experiment to see whether it could become energy self-sufficient. The islanders, with generous amounts of aid from mainland Denmark, busily set themselves about erecting wind turbines, installing nonpolluting straw-burning furnaces to heat their sturdy brick houses and placing panels here and there to create electricity from the island's sparse sunshine. By their own accounts, the islanders have met the goal. For energy experts, the crucial measurement is called energy density, or the amount of energy produced per unit of area, and it should be at least 2 watts for every square meter, or 11 square feet. 'We just met it,' said Soren Hermansen, the director of the local Energy Academy, a former farmer who is a consultant to the islanders."

The rumor that we discussed a few months back is looking more real. Vigile writes "Once the darling of the enthusiast chipset market, NVIDIA has apparently decided to quit development of future chipsets for all platforms. This 'state of NVIDIA' editorial at PC Perspective first highlighted the fact that the company was backing away from its plans to develop a DMI-based chipset for Intel's Lynnfield processors due to legal pressure from Intel and debates over licensing restrictions. That effectively left NVIDIA out in the cold in terms of high-end chipsets, but even more interesting is the later revelation that NVIDIA has only one remaining chipset product to release, what we know as ION 2, and that it was mainly built for Apple's upcoming products. NVIDIA still plans to sell its current offerings, like MCP61 for AMD platforms and current generation ION for netbooks and nettops, but will focus solely on discrete graphics options after this final release."

pickens writes "Nuclear batteries that produce energy from the decay of radioisotopes are an attractive proposition for many applications because the isotopes that power them can provide a useful amount of current for hundreds of years at power densities a million times as high as standard batteries. Nuclear batteries have been used for military and aerospace applications for years, their large size has limited their general usage. But now a research team at the University of Missouri has developed a nuclear battery the size of a penny that could be used to power micro- and nano-electromechanical systems. The researchers' innovation is not only in the battery's size, but also that the batteries use a liquid semiconductor rather than a solid semiconductor. 'The critical part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure of the solid semiconductor,' says Jae Wan Kwon. 'By using a liquid semiconductor, we believe we can minimize that problem.' The batteries are safe under normal operating conditions. 'People hear the word "nuclear" and think of something very dangerous,' says Kwon. 'However, nuclear power sources have already been safely powering a variety of devices, such as pacemakers, space satellites, and underwater systems.'"

Chris Harrison writes "About a month ago, Microsoft sent out prototype pressure sensitive keyboards to 40 international teams. They had four weeks to hack and cobble together some cool ideas. The innovation contest that centered around the keyboards released the winners last night (after a voting period Monday night at the ACM UIST conference). Some pretty neat ideas, ranging from pressure-sensitive password entry (Safelock), magnetic pens for cursor control (Hidden Forces), and even cool climbing (Rock Climbing) and land-deformation games (BallMeR)."

Simon80 writes "Harald Welte, known for his involvement in various open source communities, has pointed out the shortcomings of Netgear's open source router hype. Netgear's own astroturfed community site reveals that the router requires the use of binary-only kernel modules for the wireless and ethernet hardware, which is supplied by Broadcom. Also worth noting are the missing features in third-party firmware versions supplied by Netgear."

An anonymous reader writes "A Google study of DRAM errors in their data centers found that they are hundreds to thousands of times more common than has been previously believed. Hard errors may be the most common failure type. The DIMMs themselves appear to be of good quality, and bad mobo design may be the biggest problem." Here is the study (PDF), which Google engineers published with a researcher from the University of Toronto.

Barence writes "More than eight out of ten Mac owners also own a PC, according to a new piece of research. The NPD survey found that 12% of US computer-owning households have a Mac. However, 85% of those also own a Windows PC, suggesting that the Mac/PC divide is nowhere near as clear cut as both Apple and Microsoft suggest. Mac owners are also far more likely to have multiple computers in the house. Two thirds of Mac owners have three or more computers in the home, while only 29% of PC owners have two or more PCs."

An anonymous reader sends us to Gizmag for a look at a recent auction of a large collection of antique TVs. The star of the show was the Teleavia type P111, one of the earliest examples of high-definition TV. This rare 1958 console-stand television was designed by Flaminio Bertroni, who was also responsible for the iconic Citroen DS. The TV featured dual resolution capability, with the higher setting offering better resolution than 720p — 819 lines. This early attempt at a high-def standard, originating in France in 1949, didn't catch on in the marketplace.

Several users wrote to tell us that Dow Chemical plans on selling solar shingles as early as next year. The solar version can be integrated with normal asphalt shingling and will be introduced in 2010, with a wider roll-out scheduled for 2011. "The shingle will use thin-film cells of copper indium gallium diselenide (CIGS), a photovoltaic material that typically is more efficient at turning sunlight into electricity than traditional polysilicon cells. Dow is using CIGS cells that operate at higher than 10 percent efficiency, below the efficiencies for the top polysilicon cells -- but would cost 10 to 15 percent less on a per-watt basis."

Engadget has snagged some of the details behind a bunch of multi-touch mouse prototypes from Microsoft Research. The prototypes range from the wacky to the extreme, but at least they are thinking outside the mouse trap. "Each one uses a different touch detection method, and at first glance all five seem to fly in the face of regular ergonomics. The craziest two are probably "Arty," which has two articulated arms to cradle your thumb and index finger, with each pad housing its own optical sensor for mission-critical pinching gestures, and "Side Mouse" which is button free and actually detects finger touches in the table immediately in front of the palm rest. Of course, there's plenty of crazy in the FTIR, Orb Mouse and Cap Mouse (pictured), which rely on an internal camera, orb-housed IR camera and capacitive detection, respectively. Of course, there's no word on when these might actually see the light of day"

identity0 writes "A recent Slashdot discussion about heart-rate monitors in schools got me thinking about getting one for my own exercise. It turns out that the available models have a wide range of features: calorie rate, pedometers, GPS, PC connectivity, etc. Being a geek, I want one that will let me look at my exercise data, and I'm curious what experiences Slashdotters have had with them. Some download data to a proprietary application — are open source alternatives available or is the data format easily readable? Others upload data to an online app — can the data be pulled off the site or is it forever trapped on their servers? While I'm not an open source zealot or a paranoid about my data being shared, I would like to know that I can access my data in the future. Whatever method you guys use to monitor your exercise, I'd love to hear about it."

viralMeme sends in a piece from OLPC News featuring a video interview with Pixel Qi's Mary Lou Jepson. The interview goes over some of the improvements in the company's extremely power-efficient screen technology that will show up in the next generations of the OLPC. The article links a video side-by-side comparison among Pixel Qi, Kindle, and Toshiba R600 displays in sunlight and in shade; Pixel Qi is arguably more readable than Kindle, and in full color. Jepson refers to Clayton Christenson's 1997 classic The Innovator's Dilemma, explaining a seeming paradox in high-tech: why companies that listen to their customers aren't the ones that innovate. According to the article it's mainly because "the next big market isn't with your current customers. It's with a vastly larger group of would-be users who couldn't afford your previous products, or couldn't carry around the huge devices of previous generations." Jepson says, "The cool thing about the Pixel Qi technology is, you know, poor kids in Africa got it first... It's the classic Innovator's Dilemma."

fragMasterFlash writes with this excerpt from SemiAccurate: 'In a really pathetic display, Nvidia actually faked the introduction of its latest video card, because it simply doesn't have boards to show. Why? Because it didn't get enough parts to properly bring them up, much less make demo boards. ... Notice that the three screws that hold the end plate on are, well, generic wood screws. Large flat -head Phillips screws. Home Depot-grade screws that don't even sit flush. If a card is real, you hold it on with the bolts on either side of the DVI connector. Go look at any GPU you have; do you see wood screws that don't mount flush or DVI flanking bolts? ... If you look at the back of the fake Fermi, [from this PC Watch picture], you can see that the expected DVI connector wires are not there, just solder-filled holes. No stubs, no tool marks from where they would be cut out. Basically, the DVI port isn't connected to anything with solder, so they had to use screws on the plate."

SkinnyGuy writes "Carbon nanofibers and nanotubes are the future of computers, cars, energy and more, but it won't happen until someone figures out how to make carbon nanotubes more efficiently and in formations that can deliver enough energy and functionality to offer practical solutions for real-world problems. Honda's latest breakthrough could be the first step. Of course, Intel is working on similar carbon nanotube fabrication technology. Whoever finally delivers a practical solution, it sounds like a win-win for us."