My Samsung Focus finally arrived a couple of weeks ago (see Windows Phone 7 – Where are you?), now I am just waiting for my Developer Registration to be approved so I can “Developer Unlock” the phone.
As a .NET developer the cool thing about the Windows Phone 7 platform is that it uses a programming paradigm that I am familiar with. Regular applications for the phone are built in Silverlight while games are built with the XNA Framework, both of which are part of the .NET Framework.