Announcements about Visual Studio 2008 and the .NET Framework 3.5 are gradually coming out. Soma confirms that the products will release to manufacturing by the end of the month. More info here:
The public relations release is set for the end of February. I guess that's when you can buy a DVD with all the packaging and artwork on it.
Interesting to note that integration partners will get a look at the VS 2008 source code.