Yes!

Find the latest and greatest about both release candidates (RC) on TechNet Edge. TechNet Edge, your source for up to date news, interviews and screen cast for IT Professionals worldwide.

Some links IT Professionals (and developers as well) will be excited about:

Windows Server 2008 RC interview with Ward
Latest info about Windows Server 2008 R2 RC
Latest info about Windows 7 RC

Good reason for becoming a MSDN or TechNet subscriber:
Subscribers will have access to the bits today.