I want to develop a game for iPhone. For 2D game development in iPhone which one of these would be better in the long run....Sparrow or Cocos2D? I've seen that there is a scarce documentation for Sparrow framework but Sparrow forum says it is easier to develop games in Sparrow as compared to Cocos2D. So, where should i start with?
Cocos2d is thoroughly developed, and there are several books and a myriad of forums on the subject. I don't know too much about Sparrow. "Easy" is a relative term. If I were you, learn cocos2d.
Edit: since this question was asked, there's Apple's SpriteKit and a game engine I've built called MBTileParser.