I wanted to thank all the ISV's, VAR's, and SI's I have spoken with and those who have replied to my requests for soliciting feedback on Client Application Development (e.g., Software as a Service (SaaS) and Rich Internet Applications (RIA)).
This release has a number of significant features and bug fixes.
The RTM announcement may be found here.
Here is a direct link to the Microsoft .Net Framework 3.5 SP1.
Here is a link to Scott Guthrie's blog discussing this release when it was in Beta.
I'm very happy to inform you that your feedback played a significant role in this release, which includes -
"New Breakthroughs for Developing and Deploying Client Applications
The .NET Framework 3.5 SP1 includes the new .NET Framework Client Profile -- the fastest and easiest way to deploy applications for Windows. With .NET Framework 3.5 SP1 and the .NET Framework Client Profile, developers can more easily deploy client applications thanks to an 86.5 percent reduction (197 MB to 26.5 MB) in .NET Framework size. This means that end users will be able to download and install Windows-based applications significantly faster than before. The .NET Framework Client Profile also makes it possible to extend the improved download and installation experience to existing .NET applications.
Developers now can quickly and simply deploy new and existing rich-client applications to a broader audience."