Hi guys! I have an iPhone 3G that I'll be giving to someone. It's unlocked, jailbroken, and all ready to go. However, they are looking to use T-Mobile. With T-Mobile, they want to know if they can disable all data and use Internet surfing just by Wifi. Additionally, they want to confirm that they can still send and receive picture messages as well. Currently, the phone is running 4.0.1. I know to disable the data, I would have to go to Settings > General > Network > Cellular Data is switched to off. In this way, I would have him just use data from having Wifi be turned on. However, if data is disabled, doesn't that mean you cannot receive MMS?