1 Million T-Mobile customers are also iPhone users. Most are still using pre-iPhone 4 devices but more than a few have taken the knife to their sim card and turned it into a micro sim to fit the iPhone 4.
It's interest that just now, T-Mobile is bring this up. Why?
The most likely reason is that Apple has begun selling unlocked iPhone 4 in the US and T-Mobile, while in the midst of a merger with AT&T, hopes to take advantage of the change.
If you think about it, that is about $90 million extra dough iPhone users pay T-Mobile each quarter to access 3G data. And not only that, while we pay for 3G access, we only get EDGE because the iPhones does not run on T-Mobile's 3G network
So for about $300 million a year that T-Mobile earns, it makes sense to advertise this seemingly insignificant figure. Oh, and to make it easier on us, T-Mobile is working on securing micro sim cards so we don't have to cut up ours.
So attracting users who are willing to bring their unlocked iPhone over to T-Mobile is the reason why I think they've come out with this 1 million iPhone sub press release. There has been no hard evidence that T-Mobile will be getting the iPhone this fall.