Heavy Rain may not have a fixed date on it, but it will be playable at E3. Finally.
The Sony guys are getting things together in the PS Lounge, which is looks cooler than it did at GDC if possible, and PlayStation Blog is there.
Heavy Rain, Uncharted 2: Among Thieves, SingStar, VidZone and FIFA 10 info should be popping up on the site soon.
So go have a look.