I say 80% of all apps we do, we do now both for iOS and Android. While Android used to be a second class citizen a year or so ago - often just recieving a 'port' of the iPhone version (ok it runs, we're done) - now there's much more focus on making 'native' Android apps (no more Back-button in the navigation bar etc.). Android revenue is still behind iOS, but it's profitable and worth doing.
Since Android is growing already at a much faster rate than iOS and the whole tablet & smartphone business is only expected to get bigger anyway, you gotta wonder where we'll be in say - 5 years from now? Which will be the next Windows, the OS with 90% market share, that everybody is gonna develop for? Well it could've been iOS, but I don't think that's going to happen anymore.