Development is underway, but it is not far enough along to warrant an official release. In the meantime you can get the source code from Subversion and build it yourself.

System Requirements

The Framework runs on Windows, MacOS X, and Linux. I'm looking for someone to help get it running on the XBox 360 via XNA.

You will need a .NET 2.0 runtime. On Windows, you can get it via Windows Update or the Microsoft website. MacOS X and Linux users should use the most recent Mono release.