Download from here: Windows Phone Developer Tools Beta
After my recent pleasant introduction to Windows Phone development, I’m now an enthusiastic advocate.
Two of the new features that really catch my eye are:
I'm delighted to report that it was easy to port our beloved Polygon control to the Beta and host it in the Expression Blend 4 for Windows Phone designer.
The PolygonApp running in Expression Blend 4 for Windows Phone, adapted from the ATL Tutorial topic.
Phone 7 is moving along at high speed, and with this Beta, you can get busy and crank out that mobile app you’ve always wanted to write.
via The Windows Phone Developer Blog