Google held a press conference about the OS, due for release sometime in 2010.
According to Engadget, it seemed like it was a long way off release, even for early adopters, and beta testers.
However the following day (last Friday) they announced that it could be run on VM, and later changed that page to include a tutorial and getting it set up.
Credit to the guys at GDGT though, for making the image and publishing links.
1st link - Engadget's coverage of the conference
2nd link - Engadget's tut on running the Chrome image in VM
3rd link - GDGT's image and links etc.