Good idea, perhaps this should be the next article! However, in the meantime, you can look through the sample project here: https://github.com/smbarne/AndroidForiOS. It implements a simple app on both platforms, and it should give you a good overall idea for iOS based on the Android code.

Just see the Stanford lectures on iOS.

Not a course, but maybe you can find this tool useful:

https://code.google.com/p/java2objc/