But it's kind of hard to tell how well specific third-party apps are driving phone sales when the phones are selling approximately as fast as they can be made.

But it's kind of hard to tell how well specific third-party apps are driving phone sales when the phones are selling approximately as fast as they can be made. Well said. On a device that already plays music, is a phone, handles email and offers maps with a GPS, everything else is icing on the cake. On this topic, the bloomberg app is great. I wish I could easily email links from it though.