Develop Games For Your Xbox 360

The Microsoft XNA Game Studio Express (Beta) is available for download:

″XNA Game Studio Express enables individuals and small teams to more easily create video games using new, optimized cross-platform gaming libraries for Windows and Xbox 360. This beta release targets the development of games for Windows. The final version of XNA Game Studio Express will be available this holiday season and will enable development of games which target Windows and upon purchase of a XNA Creators Club subscription, the Xbox 360 as well.”

Has any other console vendor every let an individual develop games?