Version 0.5.0 of Nimbus was released on July 29, 2011.
This major version introduced the new Nimbus Overview, a debugging tool that shows detailed information about the state of your device and application in the device's status bar area.
Contributions are highly encouraged! If you have a feature that you feel would fit within the Nimbus framework, feel free to fire off a pull request on GitHub. Bugs may be reported using the issue tracker on GitHub as well.
Check out the tasks grab bag for opportunities to help out.