I hope you enjoyed learning about some of the new features in Windows 7 and how to take advantage of them as a developer! Below are some resources.
Jeff Barnes blog (for the slides and demos): http://blogs.msdn.com/jbarnes/archive/2009/06/09/windows-7-for-developers-and-architects.aspx
Download Windows 7: http://www.microsoft.com/windows/windows-7/download.aspx
Windows 7 Taskbar & Libraries.NET Interop Samples: http://code.msdn.microsoft.com/Windows7Taskbar
Windows Team Blog: http://windowsteamblog.com (for Developers: http://windowsteamblog.com/blogs/developers/default.aspx)