Come on people, Apple are not about to release a Sphere!!
Apart from the failure of the Cube and the obvious fakeness/spoofness of this picture (not to mention that fact it's been knocking around for years) - Apple hardware designs just don't get leaked. Screenshots sometimes do, and Apple makes them disappear very quickly.
The 970 is looking more and more likely as the next high-end Mac chip, though. I would be surprised to see a hardware announcement at this year's WWDC, however. As Jobs has said before, Apple have never launched hardware at WWDC...
It's difficult to see how they'd announce IBM 970 support without following it up with a hardware announcement pretty quickly, mind. Nobody would buy a PowerMac in the interim.
Personally, I'm not buying a new Mac until Motorola is out and a decent fast chip is in. They couldn't keep the 680x0 going, they couldn't keep the PowerPC competitive, they just about killed Psion, and owning one of their phones was a very nasty experience...
