I thought you might have an opinion on this story from Grab It - I know there is a lot of dislike amongst the console faithful for the mobile world, but there are some pretty great games on iOS. In fact, you can play all of San Andreas on an iPad, which impresses the heck out of me.
Personally, I think an iOS GTA game would make sense from a money-generating point of view. However, I don't think it will be called City Stories. Maybe something more like Chinatown Wars or even the original top-down style.