>> In general, the unlocking community buys AT&T phones that can be
>> flashed
> into compatibility with T-mobile so that no features are lost in the
> trade.
>
> T-Mobile USA's 3G, that just launched last week, is on a frequency
> previously unused by any cellular company in the world (1700MHz). You
> can
> unlock, reprogram, flash, or even puree any current AT&T phone all you
> like
> and it won't work on T-Mo 3G.

Indeed, so the unlocking community won't be buying AT&T phones for their
3G feature.