There's all sorts of stuff out today about it, but the 'official' announcement can be found here.
Special award goes out to Jeff Olson for the first snarky comment about it (in the comments to the announcement), and his use of 'auto-fellate'. Snippet:
"Released "only" as a VSX package? Really? Only supporting 2010, no less? I guess that's great for MVP bloggers, community evangelists and other assorted MS Employees who like to auto-fellate on all the Great Things they do for the community, but there's still a *huge* number of enterprise devs out there in the wild still on VS2008 and 2.0/3.5 ....Bonus points for talking about the problem-space as though NuPack were the only possible solution, to date. Kudos."
Awesome.