The release candidate 1 for the .NET Framework 3.0 is now available!  You can download the components for the RC1 here:

• .NET Framework 3.0 Runtime Components RC1
• Windows SDK for Vista RC1 and the .NET Framework 3.0 RC1
• Visual Studio 2005 Extensions for Windows Workflow Foundation (WF RC5)

The Readme for RC1 is available here. 

There is also a go-live license available for the release candidate.  You can find more information about the license and sign the online go-live license here.  

Please note:   The Visual Studio "Orcas" development tools for the .NET Framework 3.0 Release Candidate 1 have not been released yet.  We will update this post with a link to the tools when they are available. 

Update: 

The Visual Studio "Orcas" CTP - Tools for .NET Framework 3.0 RC1 are now available.   These tools provide the Visual Studio project templates for WPF and WCF. 

The online documentation for the Windows SDK for Vista RC1 and the .NET Framework 3.0 RC1 is also now available.    Here are the direct links to the documentation for the .NET Framework 3.0 technologies:

• Windows CardSpace
• Windows Communication Foundation
• Windows Presentation Foundation
• Windows Workflow Foundation