what do you mean GPRS? i mean for the states

how is t-mobile's internet service on the iphone, is it fast? how is aim and everything else

My GPRS/EDGE on iphone using T-mobile is a bit slow. But it depends on the signal strength. Try accessing the websites are wep instead of http. might help
im wireless most of the time so dont need it edge much, just use it to check my emails.

In the states, EDGE works as fast as EDGE is - pretty good.

For which country? in the UK I only get GPRS and you can't expect too much from that, but its as fast as I would expect!

In the US, my iPhone is a lot faster on T-Mobile Edge than my Dash was.

Same here, its a little bit faster than my sidekick