internet3.voicestream.com is the one to use for the iphone is the fastest and is pretty much the settings that blackberry uses on tmobile. epc.tmobile.com is about5 seconds slower but its great though. another thing epc under tzones has a cap on usage. i saw on another forum from a tmobile csr that new tzones will have a cap. if you are paying for the $20 unlimited leave it deal with it. trust me we are getting all the advantages that att users lose out on.
i was jailbreaking 3 att iphones yesterday and when i showed them i was on tmobile and told the plan i have. they were like
