The Blender developers need your help with testing the upcoming 2.48 build! 2.48 will have a good list of new features such as realtime GLSL materials, atmosphere rendering, colored shadows, the soft-body bullet update, and more!
From the announcement:
This release will reward all development for the Apricot Open Game project, a lot of new features for realtime shader editing, game logic, animation and physics.
But that's not all, check below the (growing) list of goodies for 2.48. ETA is early october! Hopefully this will be the release to keep everyone happy for a while, so we can move back to work on Blender 2.5!