For the eventual Mac & iOS apps, the engine will need to be buildable for these targets. I'm not sure what the latest status on this topic is, since I haven't had an Apple machine for a while. It should be possible to either use the C++ directly, or wrap it in Objective-C. See this question on SO.
For the eventual Mac & iOS apps, the engine will need to be buildable for these targets. I'm not sure what the latest status on this topic is, since I haven't had an Apple machine for a while. It should be possible to either use the C++ directly, or wrap it in Objective-C. See this question on SO.
See also the UIKit docs for a custom keyboard and InputMethodKit.
Feature breakdown: