[koeselitz]

Probably not, since this article is about smartphones.

Edit: but I see your point (I think) - iPod Touch users are also buyers from the iOS app store. The latest data I can find is on ad requests, which is only tangentially related to adoption, but those numbers [1] suggest that there are a little more than a third as many iPod Touch users as there are iPhone users, and a bit more than half as many iPad users as there are iPhone users. Of course, there are a lot of non-smartphone Android devices out there now, too, so it's difficult to factor that in.

[1] http://www.bgr.com/2011/12/06/top-3-connected-devices-in-u-s...