PS3 - No HDD - Official
[Edit: Sony did change their minds! The PS3 will come with a 60GB HDD.]
Click on the PS3 link, then drag-scroll down to near the bottom of the PS3 info page, and you’ll see this:
* Storage media (HDD, “Memory Stick”, SD memory card, and CompactFlash) are sold separately
So there you have it. Direct from an official Sony website, the PS3 will not include an HDD.
Doesn’t mean they can’t change their minds, though. But I doubt it.