It didn't cost him anything (I met him at iPhoneDevCamp a month or so ago), and he did it part time (I think his first iteration took 2 weeks) while holding down a full time job.

The second video on his site says that it took him "many months" full time.

When I met him a month ago, he was still working full time. Perhaps I misunderstood him.

I think he had worked 4 months on the app during evenings and weekends, and his first iteration (in time for GDC I think) took about 2 weeks.

So Android phones are going to outsell iPhones?

It's a tough call, but note that the iPhone is not the smartphone market leader -- Blackberry is. Android could outsell iPhones solely by cannibalizing Blackberry sales, although it obviously has other opportunities: Windows mobile users, Palm users, people who want something like the iPhone but don't want to switch to AT&T, etc.

I'm confused, why would you pick US Cellular over AT&T?

Cheaper plans, better coverage (in Chicago suburbs), friendlier salespeople, better contract terms, lower cancellation fee, etc.

I wouldn't be so sure. The iPod outsold hundreds of mp3 players.

If everyone adopts Android, then sure!