You are now able to download the Silverlight 4 RC, the Windows Phone Developer Tools CTP, and Expression Blend 4 Beta to get ready and develop for Windows Phone 7.

Totally cool, since Silverlight will be supported on the phone and you will be able to develop applications right out of Visual Studio, so no new learning for you…. On top of it, Expression Blend 4 will be available especially for designing UI of the phone apps…!