Several readers have sent word that George Hotz (a.k.a. geohot), the hacker best known for unlocking Apple's iPhone, says he has now hacked the PlayStation 3. From his blog post: "I have read/write access to the entire system memory, and HV level access to the processor. In other words, I have hacked the PS3. The rest is just software. And reversing. I have a lot of reversing ahead of me, as I now have dumps of LV0 and LV1. I've also dumped the NAND without removing it or a modchip. 3 years, 2 months, 11 days...that's a pretty secure system. ... As far as the exploit goes, I'm not revealing it yet. The theory isn't really patchable, but they can make implementations much harder. Also, for obvious reasons I can't post dumps. I'm hoping to find the decryption keys and post them, but they may be embedded in hardware. Hopefully keys are setup like the iPhone's KBAG."

conner_bw writes "Imagine strumming a guitar without any strings, on a touchscreen. Think the idea is too far-fetched? The Misa digital guitar claims to be exactly this. Overcoming the natural limitations of a traditional guitar, this new instrument eliminates the need to pluck strings while using the right hand to control sound. Specs: Linux kernel 2.6.31 (Gentoo); 24 frets; touchscreen; MIDI out; RJ-45 Ethernet. My favourite parts of the site are the FAQ (How do you SSH into the guitar?), and this quote from the developer: 'Because the software is open source I'm hoping people completely change the instrument and share new "firmware" with others. Different graphics, different control ideas etc. It would all be free of charge. So I'm hoping that happens as the instrument becomes more familiar.'" The developer, Michael, has not yet promised a delivery date or set a price for the instruments he is manufacturing.

An anonymous reader passes along a word about an innovative LCD writing tablet. The Boogie Board costs $30, can be written on with a stylus or a fingernail, and uses no power in the act of writing. Only erasing consumes power — from a watch battery, which lasts for 50,000 erases. The total cost per "page" comes out to only 1/15th that of steno paper. The writing surface is pressure-sensitive and "highly responsive to variable amounts of pressure," so you can make thick and thin lines.

digitalPhant0m writes to tell us that IBM researchers have set a new world record for areal data density on linear magnetic tape, weighing in at around 29.5 billion bits per square inch. This achievement is roughly 39 times the density of current industry standard magnetic tape. "To achieve this feat, IBM Research has developed several new critical technologies, and for the past three years worked closely with FUJIFILM to optimize its next-generation dual-coat magnetic tape based on barium ferrite (BaFe) particles. [...] These new technologies are estimated to enable cartridge capacities that could hold up to 35 trillion bytes (terabytes) of uncompressed data. This is about 44 times the capacity of today's IBM LTO Generation 4 cartridge. A capacity of 35 terabytes of data is sufficient to store the text of 35 million books, which would require 248 miles (399 km) of bookshelves."

KentuckyFC writes "The vast majority of motors that power our planes, trains, and automobiles are heat engines. They rely on the rapid expansion of gas as it heats up to generate movement. But attempts to shrink them by any significant amount have mostly ended in failure. Today, the smallest heat engines have a volume of some 10^7 cubic micrometers. Now group of Dutch engineers has built a heat engine that is seven orders of magnitude smaller than this. The engine consists of a piezoelectric bar that expands and contracts in the normal piezoelectric way. However it also heats up and cools at the same time causing a thermal expansion and contraction, which lags the piezoelectric displacement. By carefully choosing the frequency of the driving AC current, the Dutch team found a resonant effect in which the thermal expansion and contraction amplifies the mechanical motion, making it a true heat engine. Operating the thermodynamic cycle in reverse turns the device into a heat pump or refrigerator. The total volume of the device is just 0.5 cubic micrometres."

benz001 writes "In the run-up to everyone's favourite tablet, Phil Gyford goes back through his gadget collection and compares text entry speeds to see which one comes out on top. It's not what you'd call a rich data set, and of course the Qwerty keyboard comes up trumps, but the iPhone virtual keyboard came in a surprisingly close second, just edging out the Treo — and all the keyboard solutions regardless of how small and fiddly beat real pen and paper. This probably matches most people's experience (when was the last time you had to handwrite more than a bullet point in a meeting?) and gels pretty well with Macworld's predictions but I'm still hoping for sub-vocal voice recognition. (Jump straight to the final results here)."

Sabalon writes "I work at a state university with remote sites, minimal space, and all the other usual bits. We used to have some dedicated-circuit video conferencing tools but those have fallen into disuse. The administration is now interested in being able to stream a class from site to site, or at least have a student at one site have visual interaction with a person at another site. My thought is that if Skype, uStream and others can do live video, there has to be some things out there that don't cost a fortune but work effectively. Key things would be the ability to use commodity web cams as a source, viewable on a PC (preferably all the main OSes) and the ability to add in other devices (say H.323 encoders) or desktop/application sharing. Are there decent products and solutions out there for us mere mortals?"

goldaryn writes "Word from the BBC today is that Europe's biggest space company is seeking partners to help get a satellite-based solar power trial into orbit: 'EADS Astrium says the satellite system would collect the Sun's energy and transmit it to Earth via an infrared laser, to provide electricity. Space solar power has been talked about for more than 30 years as an attractive concept because it would be 'clean, inexhaustible, and available 24 hours a day.' However, there have always been question marks over its cost, efficiency and safety. But Astrium believes the technology is close to proving its maturity.'"

kylevh writes "On one side, there are the people who think that a traditional GUI—one built on windows, folders and the old desktop metaphor—is the only way to go for a tablet. In another camp, there are the ones who are dreaming about magic 3D interfaces and other experimental stuff, thinking that Apple would come up with a wondrous new interface that nobody can imagine now, one that will bring universal love, world peace and pancakes for everyone. Both camps are wrong: The iPhone started a UI revolution, and the tablet is just step two. Here's why." There are lots of cool UI ideas in there, even if it is entirely speculation. It's worth a read just to think about what the future could be like.

MikeChino writes "NASA is currently working on a personal aircraft that will put jet packs to shame. The Puffin is an all-electric one-man airplane that could be the start of some new and amazing air travel technology. With two prop electric engines, lithium phosphate batteries and a top speed of almost 300 mph, the vertical take off and landing vehicle was originally designed for covert military insertions because it has a lower heat signature than combustion engines. The Puffin would also be super quiet – 10 times quieter than current low-noise helicopters, and since the engine is electric it has no flight ceiling and can fly up to 9,150 meters high, uninhibited by thin air."

crimperman writes "The Open-PC project has announced that its first PC will be available at the end of February for €359. They claim the mini-ITX desktop machine is energy efficient, consumer ready, easy to upgrade, and — significantly — uses only hardware that has free software drivers available. As you'd expect, it comes with GNU/Linux which is running KDE (a €10 donation to the KDE project in included in the price). Interestingly all the key decisions on design, pricing etc. have been made by the community via online polls. The spec of the machine is pretty reasonable for the price: Atom 1.6GHz dual-core processor, 3GB RAM, 160GB HDD, Intel 950 graphics."

An anonymous reader writes "With HDMI becoming increasingly common, Displayport has been slow to emerge as a widely used connection interface, but a plethora of new features in the new v1.2 standard could see that change. As well as doubling the data rate of the existing v1.1a standard to 21.6 Gbps, the update allows for multiple monitors to be connected to a single Displayport connector and adds support for transporting USB data at up to 720Mbps, enabling embedded webcams, speakers and USB hubs over a single cable. Ethernet data is also supported. The improved data rate will allow for richer, larger and higher resolution displays, and the new version is also backward compatible with the current display technology, so all the ports, cables and devices will be interchangeable, although they will revert to the lowest common denominator."

kkleiner writes "Open source robotics received a huge momentum boost last Friday. Willow Garage, one of the driving forces behind the Robot Operating System, announced that it would be giving away ten of its new and extraordinary PR2 Beta Robots. Willow Garage has an open call for proposals, so that any research group can apply to receive one of the PR2 Betas free of charge. Applicants will have to release their research with the PR2 freely and under standard open source agreements. In this way, Willow Garage is accelerating the field of robotics, not just by making their PR2 Betas available, but by encouraging the shared development of robots and advocating an open source approach."

miller60 writes "Iceland is poised for the completion of its first major international data center project, after years of marketing itself as a potential data center mecca. Iceland offers an ample supply of geothermal energy and an ideal environment for fresh air cooling, but its ambitions were slowed by the global financial collapse. But now the huge UK charity Wellcome Trust has provided funding to complete a new data center in a former NATO facility in Keflavik."

Gizmodo highlights a very cool repurposing effort for the Wii's Balance Board accessory. Rather than the specialized force platforms used to quantify patients' ability to balance after a trauma like stroke, doctors at the University of Melbourne thought that a Balance Board might serve as well. Says the article: "When doctors disassembled the board, they found the accelerometers and strain gauges to be of 'excellent' quality. 'I was shocked given the price: it was an extremely impressive strain gauge set-up.'" Games controllers you'd expect to be durable and at least fairly accurate; what's surprising is just how much comparable, purpose-built devices cost. In this case, the Balance Board (just under $100) was compared favorably with a test platform that costs just a shade less than $18,000.

Vigile points out yesterday's launch of "the new AMD Radeon HD 5670, the first graphics card to bring DirectX 11 support to the sub-$100 market and offer next-generation features to almost any budget. The Redwood part (as it was codenamed) is nearly 3.5x smaller in die size than the first DX11 GPUs from AMD while still offering support for DirectCompute 5.0, Eyefinity multi-monitor gaming and of course DX11 features (like tessellation) in upcoming Windows gaming titles. Unfortunately, performance on the card is not revolutionary even for the $99 graphics market, though power consumption has been noticeably lowered while keeping the card well cooled in a single-slot design."

SchlimpyChicken writes "Lexicon and THX apparently attempted to pull a fast one on the consumer electronics industry, but got caught this week when a couple websites exposed the fact that the high-end electronics company put a nearly-unmodified $500 Oppo Blu-ray player into a new Lexicon chassis and was selling it for $3500. AV Rant broke the story first on its home theater podcast with some pics of the two players' internals. Audioholics.com then posted a full suite of pics and tested the players with an Audio Precision analyzer. Both showed identical analogue audio performance and both failed a couple of basic THX specifications. Audioholics also posted commentary from THX on the matter and noted that both companies appear to be in a mad scramble to hide the fact that the player was ever deemed THX certified."

Sockatume writes "Residents in Craigavon, South Africa complained of '[h]eadaches, nausea, tinnitus, dry burning itchy skins, gastric imbalances and totally disrupted sleep patterns' after an iBurst communications tower was put up in a local park. Symptoms subsided when the residents left the area, often to stay with family and thus evade their suffering. At a public meeting with the afflicted locals, the tower's owners pledged to switch off the mast immediately to assess whether it was responsible for their ailments. One problem: the mast had already been switched off for six weeks. Lawyers representing the locals say their case against iBurst will continue on other grounds."

An anonymous reader writes "Interesting video interview on silicon.com with Sheffield University's Noel Sharkey, professor of AI & robotics. The white-haired prof talks state-of-the-robot-nation — discussing the most impressive robots currently clanking about on two-legs (hello Asimo) and who's doing the most interesting things in UK robotics research (something involving crickets apparently). He also voices concerns about military use of robots — suggesting it won't be long before armies are sending out fully autonomous killing machines."

Lord Straxus writes "In this presentation (video) from the JVM Languages Summit 2009, Cliff Click talks about why it's almost impossible to tell what an x86 chip is really doing to your code due to all of the crazy kung-fu and ninjitsu it does to your code while it's running. This talk is an excellent drill-down into the internals of the x86 chip, and it's a great way to get an understanding of what really goes on down at the hardware and why certain types of applications run so much faster than other types of applications. Dr. Cliff really knows his stuff!"