Woo, lots of mixed emotions reading that. First of all, it's great that they're working on a multi-platform project. Now, finally, (some) people without a Playstation will stop putting them down or implying that they don't make "real" games.
However, the part about scoring a huge financial success is kind of scary. There might have to be some compromises made, some of thatgamecompany's magic might be lost. I hope not, but it's possible.
They'd also better make sure they're ready. They shouldn't expect other investors to be as supportive if they go two years over on development.