[archtech3d]

Its the same except for ROM, not RAM. ROM is on-board storage for games and apps. Pro - 512, Diamond - 256. They will run the same speed though because the processors and ram - 288mb (256 + 32mb graphics) are identical.

Only other differences include a flash for the camera on the Pro, not on the Diamond, and the Diamond has 4gb internal storage, no SD card, and Pro has no internal storage and sd card (comes with 1gb card - expandable to 8gb if not more).

I'm getting the Diamond as well because the Pro seems too bulky. I don't need more than 4gbs, and they will perform the same.