Microsoft held its annual developer-focused Build conference on April 2 - 4, and thankfully all of the sessions were recorded and are available for viewing on their own Channel 9 events page. There are a lot of sessions to watch and learn from (185 to be exact) on a diverse set of topics. I've watched a few videos already - it's impressive, and almost overwhelming, to see and understand how much Microsoft has done in the last year.
So far I've watched 2 videos. In the Day 2 Keynote session, an impressive number of new Windows Azure features were announced. In The Future of C# session, it started out by explaining the benefits of the new Roslyn compiler, and showed how developers will be able to hook into the compilation process using Roslyn's APIs to perform custom code transformations in Visual Studio, and then they showed some upcoming and proposed extensions to the C# language.
These videos are going to keep me busy for quite a while, thank-you Microsoft for sharing them for everyone to watch!