Can any (such as 2g or 3g) work with t-mobile once unlocked, and will the internet work with EDGE and all that? I am looking to get an iphone here soon and just want to know what I should be looking for before I purchase one. Does it have to be below a certain firmware version, or anything like that or can I just get any old iphone and unlock it? Thanks in advanced!
I am almost positive in saying that the 2g version will work, as for the EDGE question i am not sure if you can get the internet to work through it. But i do know that you are able to get wifi on the unlocked 2g phones so if you are somewhere were they have that then you are fine with the internet. Hope this helps answering some of your questions.
I no that you can use a 2g iphone and have all tmobile options work including mms messaging (takes a little work)