I think two of Google's major aims will be to improve competition among Android manufacturers and use the experience gained from building its own phones to impr

I think two of Google's major aims will be to improve competition among Android manufacturers and use the experience gained from building its own phones to improve Android for all of them. That's not to say that Google won't make much money off the physical device, but I think Google's aim is to increase revenue from Android (ultimately adverts) by making the platform better.