I'm going to paraphrase a friend of mine who is a great mobile developer. They could have used AIR on mobile to re-use the AS3 codebase. Alternately, they coul

I'm going to paraphrase a friend of mine who is a great mobile developer. They could have used AIR on mobile to re-use the AS3 codebase. Alternately, they could have done c++ on cocos2d-x instead of objective c, so that would have been pc portable. They would just have to write it twice, in that case. However, if you are a group of AS3 devs jumping to mobile, they probably picked the best sounding thing at the time - which was cocos2d. Keep in mind android wasn't really a game platform in 2011, so choosing cocos2d in obj-c over c++ wasn't really a bad call.