Those are all quarterly snapshots though, representing 3 month windows of (usually) how many phones Samsung and others shipped to a store. They don't accurately represent how many end users have access to an app you might write. Especially with the fragmented nature of the Android platform.

I'm all for competition too, and find it great Android is as strong as it is to provide viable alternatives in the market. I just don't see any signs Android is going to marginalize iOS during the next 5 years, as it hasn't done so over the past 5 years.