> Sure, I can buy
> an iPhone, or an unlocked Tilt or whatever from AT&T or an N95 and
> put it them T-Mo, but without 3G, video calling, mobile TV, etc.,
> it's not really that advantageous to me to bother. For example, I
> have a T-Mo MDA (HTC Wizard) now- what would, say, an 8525 or a Tilt
> get me that I don't already have, when T-Mo doesn't offer compatible
> 3G?

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.