1) Recommend to watch: Microsoft Build 2012 video sessions. http://channel9.msdn.com/Events/Build/2012
2) Type annotation JavaScript from MS, it has VS2012 IDE support, and syntax looks like ActionScript3 (you could be easy to learn it because OneView/CCW use Flex) : http://www.typescriptlang.org/
3) PythonTools for VisualStudio2012 support, http://pytools.codeplex.com/
4) JustDecompile updated, (but I suggest ILSpy). http://blogs.telerik.com/blogs/posts/12-10-26/decompile-with-a-bang.aspx

Update sources:
http://coolthingoftheday.blogspot.com/
http://blog.cwa.me.uk/
http://jasonhaley.com/blog/