I just noticed that the Developer Division Customer Product Lifecycle Experience (DDCPX) team has a team blog on the MSDN blogs site as of the end of September 2005. The DDCPX team owns creating service packs and hotfixes for Visual Studio and the .NET Framework, and they also own additional end-user focused activities (such as creation of power toys and other "after market" solutions, and managing the bug reports that come in from the Product Feedback Center). There is a nice description of exactly what the DDCPX team does here. The team is pretty big, and a few of them already have their own personal blogs as well, such as Heath Stewart and Josh Ledgard (I read both of their blogs regularly).
I encourage you all to take a look at the DDCPX team blog when you get a chance. Personally, I'm looking forward to reading more about the supportability tools they're thinking about working on, and I might be able to help them as they start working on validation tools for .NET Framework installation state since I have worked on tools like that in the past with a couple of members of the DDCPX team (for example, this tool that verifies the file versions of all files installed by the .NET Framework 1.0 and/or 1.1).