Windows Phone SDK 7.1.1 Update Now Available
"it’s the final version of the CTP we released last month, and enables Windows Phone developers to do two things:
Develop apps that work well on the new 256 MB devices;
Use the WPSDK 7.1 to develop on machines running Window "
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Reactive Extensions v2.0 Beta available now!
Windows Phone Data Binding Tutorial
Windows Phone Dev Podcast