As for tracks, Monaco and the Yosemite and Grand Canyon courses are promised in the footage, as are several new locations. One might be in the Swiss Alps, judging by the lakeside mountain view.
So will Vision GT be a PS3 launch title? Only a supreme optimist would say yes. Gran Turismo 3 would have made an excellent launch title for the PS2, but didn't appear until months later. And with developer Polyphony Digital being notoriously close-mouthed about its baby, there is no way to pin down a date until the official word is out.