As someone on AT&T now but whose contract has expired, I read stuff like this with great interest. I tested my friend's iphone 5 last week here and he was getting 22mb d/l and 10mb u/l. I could swear at AT&T a whole lot but still enjoy those speeds.
i wonder if my microcell will work with tmobile? i'm out of contract and have been thinking about switching.
It will not. Instead of a dedicated unit T-mo uses UMA to allow phones to make calls via any wifi connection.
http://en.wikipedia.org/wiki/Generic_Access_Network
I believe it had previously been implemented in hardware (BB Curve etc.), these days it's implemented via software for Android handsets. Not yet supported on iphones.
I love the neighborhood, but the wireless situation sucks.