Today in Mix010 Microsoft has announced Windows Phone Developer Tools and the great thing which is new for me atleast (but i must say i suspected it ) is that it’s purely Silverlight… Scott Guthrie announced that development plateforms for Windows Phone are Silverlight and XNA..
The most amazing thing is that unlike it’s predecessor Windows Mobile or so… it’s not a compact framework of Original, it’s not Silverlight Compact or Silverlight for Windows Phone… it’s SILVERLIGHT full framework…
Development tools are available only with Visual Studio Express 2010 IDE and can be downloaded from here
Microsoft has shown a pretty good simulator for Windows Phone:
i have gone through some good blogs Windows Phone takes the stage at Mix and Windows Phone 7 and Silverlight – Details Revealed