oranghutan writes "Computerworld is reporting Canonical has made available the Release Candidate of its latest Linux-based operating system, Ubuntu 9.10, on the same day Microsoft launched the long-awaited Windows 7. 'The upcoming Canonical release, which is code-named Karmic Koala, is the latest version of the popular flavor of the Linux OS. The development release on Thursday pushed the OS one step closer to final release, which is due on Oct. 29, according to the company's release schedule Web page. An image of the OS is available for download on Ubuntu's Web site. Test versions of Karmic Koala RC available for download include the server, desktop and netbook versions.'"