I just purchased a iPhone 4 that I had legally unlocked (not jail broken)
I setup service with TMobile and the MMS on this thing is terrible.
No picture messages at all.
Regular texts will send and look like it sent but my friends and family never receive them or they get them once in a blue moon.
I also have problems receiving texts where I only get whatever it feels like.
I can get over the terrible Internet speed because I have a iPad 3 on Verizon LTE but I having a hard time coming to terms with this problem texting.
I do business and communicate with my family through text.
I was getting a pop up on my phone for a wile saying the messages may cost extra. Then I stopped getting the message and my messages stopped.
functionality difers among the carriers that the Iphone supports - nothing Apple can do about that - since T-Mobile (in the US) is not officially an Iphone carrier you basically took your chances when you decided to use them
Not sure what selse you can expect
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