Android handset makers aren't competing with each other? Even if they aren't right now, or if Android is the one thing they don't publicly compete over, that will change. If the iOS slice of the pie shrinks enough at the expense of the Android slice, don't be surprised if unifying "Android" branding starts disappearing from all handset advertising. They'll all want to talk about how they're unique and better an not the other guys, not about how they're holding hands.