If this is true, then Sony will need to have a lineup of new games for the PS3 - this is from the guy behind the "Final fantasy" franchise:

The Xbox 360 operating system shares enough similarities with Windows, he said, so that porting the Windows version of FFXI to the 360 was a fairly quick task. A PS3 version of FFXI, on the other hand, would require redeveloping the game almost from scratch, a process that Tanaka estimated would take two or three years.

As a result, FFXI will emphatically not be a launch title for the PS3. In fact, Tanaka did not commit to bringing out FFXI for the PS3 at any time. He feels that the resources required to port the game to the PS3 might be better invested in a new game that's built from the ground up for next-gen hardware--but his team has yet to make a final decision one way or another.

I don't follow the development side of the game industry that closely - is it that the game engine for the PS3 is that different?