That would require these various teams at Microsoft to act as if they were a single organization. This has historically been difficult for teams at Microsoft.
This Github account is definitely run by Googlers (Will Norris and Ilya Grigorik). It was announced on one of the internal mailing lists a few days ago as a companion to code.google.com for things like rubygems, not as a replacement of any kind.
any chance they (or github, or someone else) will enable bidirectional syncing of changes? It'd be nice to see 2 or 3 of the ones out there support not just importing, but also methods for automating the syncing of changes, especially if that means that I can do a github pull request and it automagically becomes a branch or patch file sent to an svn-hosted project.