Any developer can use tools from
http://msdn.microsoft.com/mobility/w...indowsmobile5/ to develop for win mobile 5. In Visual Studio 05 with some downloaded windows mobile tools, you can play with the actual windows mobile 5 through emulation. The leak had no effect on microsoft's developer support. However, it did bring a lot of publicity to it's new OS. Developers like to develop products that they can sell... if win mobile 05 is "what's in", then they're gonna be ready for it.
Get the free (~$5 shipping) developer evaluation kit here..
http://msdn.microsoft.com/mobility/w...t/default.aspx