It is quite possibly the worst game that I have ever played, do not buy it.
Yes, the presentation is quite good, the story hasn't done much so far, and I am just going to give up on the game and read it on wikipedia. The fundamental problem with it is that it is just a shooter, with 3 special moves, and it is not a fun shooter. You control where you character moves by tilting, and he automatically shoots at the person you lock on to, but it is entirely unresponsive. I was playing yesterday, and holding the iPod at vertically, and it took about 5 seconds to respond. It is just plain awful