How is AppCode going to get any better than that? Either they're going to go the heuristics route, like Xcode 3 and below, and have all kinds of cases where the

How is AppCode going to get any better than that? Either they're going to go the heuristics route, like Xcode 3 and below, and have all kinds of cases where they fail miserably, or they're going to hook into LLVM, and have no real insights into the code that Xcode 4 wouldn't. You can have symbols available to you from the compile that you're not interested in using. How do you filter them out smartly? There is plenty of room for improvement, even with a LLVM-based parser for determining possible autocompletions. Also, Xcode 4 has a tendency to forget it has to show me any completions at all. At that point, Xcode 3's autocompletion is preferable to, well, nothing.