Today, During his key note speech of the Tech Developer 2007, SomaSegar (Microsoft Vice President) Has announced that VSTS as well as VS.net 2008 will be available for download as an RTM during this month (November 2007).
He also announced that starting from now the Premier partners will have the availability to see the source code of the VS.net. Moreover, partners will be permitted to use VS.net over other platforms rather than Windows.
Actually, the announcement of open the source for the premier partners will give the opportunity for Microsoft to avail the source code of VS.NET for some governments (as I think) who refuse to invest into anything but the open source.
For the RTM Release, Let us wait to celebrate :)