Kingdom Hearts 1.5 will be out on September 10, the folks at Square Enix said today.
The PS3 exclusive features an HD remake of the original Kingdom Hearts and the PS2 game Kingdom Hearts Re:Chain of Memories. It's also got cinematic scenes from Kingdom Hearts 358/2 Days, and extra content from Kingdom Hearts Final Mix. And if your head hurts from all these names, we don't blame you.
Also, if you pre-order the game, you get an artbook.