Microsoft has released the first Community Technology Preview of the next version of Visual Studio here
Note that this download is not for the faint of heart. According to this screenshot taken from the webpage mentioned above, it will take approximately 6.25 days to download with a 56K modem. Fortunately, with my bad-boy DSL, I got a 313 KB download rate and it only took about three hours.
There is one other catch: after you download this massive thing, there is yet another
download containing the base operating system for the VPC machine. That download is another 1.1 GB. I'm nearly finished downloading this last chunk now. I'll post here if I have any trouble installing.