Yes, to develop for iOS or Mac OS X you will need to do so on a machine with Mac OS X, which is a requirement from Apple, and has nothing to do with Cocos or Windows. Apple just likes to control things. 
Yes, to develop for iOS or Mac OS X you will need to do so on a machine with Mac OS X, which is a requirement from Apple, and has nothing to do with Cocos or Windows. Apple just likes to control things.