I pre-ordered this the other day and am totally stoked to play it. The fights with Raven look friggin' awesome (as does the rest of the game). I'm a huge fan of cel-shading in general so this is a nice treat for the eyes.
Now *this* is a reason to buy a Vita.
The music is also very, very awesome. I hope it's actually music from the game.
All Vita games are available as digital downloads as well.
@tsunami2311 Well, they have to give us a reason to actually buy handhelds in the first place...