I was very excited about the game when it came out. After playing it, I really wished the PS3 came with a mic like the 360. Although I hate hearing the majority of what's said in online games, it does get people working together. So far, Fat Princess has just been a game of running to the middle, dying, and waiting to respawn.
It has potential, but I don't think it's greatness will be realized if it's hard for people to work together.