This is not surprising, given Apple’s users, iTunes place in podcast curation, and the standard Podcasts app on every iPhone. All that considered, iPhone users should listen to podcasts more than any other user.
I can’t wait to see Podcast listening continue to grow as a whole, and our numbers at Too Many Comics echo these statements — Apple’s podcast app is the biggest by far.
As far as Android, what would it take for Google to bake podcasts into Google Music? Or does iTunes, and shows having to submit to iTunes, have too much of a stranglehold?