At Google IO, the company announced it’s now passed 400m cumulative activations*. Apple hasn’t reported the June quarter (the 365m number above is from the March quarter), but iOS sales have almost certainly also now passed 400m, giving the two competing platforms 800m cumulative sales in total.
Estimating how many of those are active is a bit trickier, but it’s probably somewhere over 600m. This is pretty much the same as the total number of broadband lines there are in the world today.
(* Plus, say, 10-20m Android devices made in China or India that have never been connected to Google and don’t show up in the figures)