hey guys I recently got my rebel sim off ebay for my t-mobile US 3g iphone.

As i put the rebel sim and configured everything
data roaming on
etc
everything works perfect. phone calls and texting.
but the data does not work
I tried setting up the apn
username wap.voicestream.com, internet2.voicestream etc.
nothing worked.
Im currently came from a my fav's family with 2 lines and sidekick data plan
does that have to do with anything? it would be nice if i could swap back and forth without changing my plan. thanks again guys

Please put your cell phone in some other phone. Be sure to TURB off high-speed 3G on that phone (eg. turn off DUAL MODE, enable ONLY "GSM" mode), and surf via EDGE on it.

Then put SIM card back to iPhone.