Device: 3G
Firmware: 4.1
Jailbreak tool if used: N/A
Unlock tool if used: Ultrasn0w
Computer OS: Windows 7
Carrier: T-Mobile

I just upgraded from 3.1.2 to 4.1. I have always used Swirly MMS to send and receive MMS messages. Will I have a problem with this app on T-Mobile or is the MMS issue only if you are trying to use the standard text app? Thank you