We can safely assume sales = phones manufactured. lol. I would expect maybe 6 or 700k by now considering they are selling them as fast as they are making them. Its gonna be a great time to be a Verizon customer once the Xtreme and Droid 2 hit.
I dunno, last time I heard any numbers it just said Android phones were selling 100,000k a week. So I suppose the newest two devices can safely be assumed they are the majority of that number. It wouldn't surprise me if the incredible is pushing about 20k a week or so.
And number manufactured is not the same as number sold. Of course with the back stock thing in the back of mind I say that lightly