Google does sell a model of the N1 that works on AT&T's 3G bands, it's the only decent Android phone for them. All the ones AT&T sells are extremely crippled.
Yep, and it does me little good though. If I decide I don't like it, (and Android is going to have to do a lot to win me over compared to my current iPhone), I'm out $45 for restocking, plus shipping, plus whatever other fees. And a hard limit of exactly 14 days to try it out.
The Evo was potentially attractive since I could get it from a local store, try it, and have up to 30 days to return it and get a full, 100% return of my money. And on top of Android, it offered 4G, something I currently don't have and likely won't on AT&T till well into 2012.