Objective-C sucks as a language. It's just awful to look at, isn't really that much more efficient than C++ or even C itself, and realistically the only reason we use it in the first place is because it's the language of iOS.

Sure, it's not hard to learn. But in my spare time, am I really going to work with a language I can't stand to make my iPhone app or am I just going to want to make a web app in Ruby? The latter sounds a lot more fun, but the former is obviously more efficient. The fact that we can now combine both? Holy shit.