MSDN Developer Center received a “Windows 7 GA refresh” and now sports a new look and much improved functionality. The MSDN Developer Center includes a lot of Windows 7 material that extends the training content on available on Channel 9. You can think of the MSDN Developer Center as a hub for the Windows 7 content that’ll give you a great head start as you develop applications that’ll shine on Windows 7. You can find information about specific topics, review different programming models, learn about developer tools that you can use, watch videos, and read blogs.
More info: MSDN Dev Center
Mark Russinovich: Inside Windows 7 Redux: video