From a dev standpoint it is a bit more head on for developing on the iPhone, You only need to make it work with one set of hardware, one set of software and one screen resolution, as for an android, good luck figuring out how many different phones, types of hardware, OS versions, and more... While I am an android user and would love to see this app for us first for once, it's a bit more simple from a release/support stand point for iPhone.