>> Think about why everyone doesn't switch to T-Mobile? It's not handset
>> selection (other than perhaps the lack of the iPhone without
>> unlocking).
>
> Selection certainly could be one factor- their selection is piss poor,
> unless you want one of there seeming endless "limited edition"
> Sidekicks, the quasi-PDa for the slacker generation. High-end
> handset selection is one of the worst.

Most unlockable AT&T phones are available to T-Mobile users.