Two days ago, Google announced on the official Google Blog the open-sourcing  of the project Chromium OS, presented in july 2009. As with the Google Chrome browser, development will be done in the open from this point on, one year before  Google Chrome OS will be ready for users. This means the code is free, accessible to anyone and open for contributions.

The release of Chromium OS includes:

• Chromium Blog
• Source code
• Design docs
• User interface experiments
• How to build and contribute
• Short overview video