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Yeah there probably will be a delay, however since all tmobile iPhones come unlocked once purchased out right you could consider that an unlocked version.

So what's the differene between buying unlocked ad through T-mobile? Is there one?

I currently have a T-mobile pay-as-you-go plan. Will buying from them require me to get some sort of unlimited plan?
 
So what's the differene between buying unlocked ad through T-mobile? Is there one?

I currently have a T-mobile pay-as-you-go plan. Will buying from them require me to get some sort of unlimited plan?

The only difference is that one comes with T-mobile sim the other not. That and for the T-mobile iPhone to be unlocked you have to pay off the device or pay all of it up-front.
 
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