I think you're prolly selling Android short and leaving money on the table in the process. All reports are that most code is fairly quick to port and the sheer number of phones is hard to ignore, even if many of them aren't app shoppers, there's still many many many that are and the app store will iterate quickly. Chrome sucked too at 1.0.
If you don't want to deal with the backend on Android there are solutions that shouldn't be all that different from Apple's 30% cut.
I'm kind of shocked that "all reports" would say code is easy to port between iOS and Android. Have any sources for this? For me its not even just the differences between unmanaged Obj C vs managed Java + XML, but also the overall development patterns used are fairly different (note that I'm not a professional mobile guy, I do .Net and web for a living but I've looked around at both platforms before).
If you don't want to deal with the backend on Android there are solutions that shouldn't be all that different from Apple's 30% cut.