Sony Announce Killzone Mercenary

Sony have announced Killzone Mercenary for the PlayStation Vita. There wasn't much information available, but it was said that the game just wouldn't be possible on any system outside of the Vita. Is that just thanks to the touch controls or will it be something really special? 

I have to say that the graphics were rather good and I liked the idea of receiving money for doing certain things, but until more information is announced, it's probably best to reserve judgement.

Although no release date was announced, it's probably fair to expect Killzone Mercenary at some point over the next year.