Windows Phone 7 can host the same Silverlight runtime for the web platform, WP7 initially will run a superset of Silverlight 3 with phone-specific extensions like accelerometer etc. Just listed down here all the Mix10 keynote take aways and Links here. 

 

http://amazedsaint.blogspot.com/2010/03/key-take-aways-from-mix10-keynote.html