AT&T Likely Bought Lion's Share of Spectrum At Latest Auction → Squatting

I have strong suspicion that a lot of that spectrum will lay dormant as AT&T sits on it to prevent others from acquiring it. Unless they pull another boneheaded move like they did trying to acquire T-Mobile and wind up losing spectrum, this will simply diminish the supply. At some point they may even sell it for a profit to someone else.

This have a pretty sizable amount of AWS now. I imagine their plan is to combine it with their WCS and rollout a home internet service. They could bundle it with DirecTV and offer wireless triple-play.

I think you are spot on with that one, cause all they would really have to do is take the fiber to a remote cabinet and put an antenna on top of a pole. They could hit everyone then with minimum effort and have some decent wireless speeds and services to boot.