So what does this mean? Again, it all goes back to the timing of the testing. If it occurred before the merger news broke, we could see a T-Mobile branded Apple iPhone in the not too distant future. If the testing came after the merger was announced, than T-Mobile customers will probably need to wait for the merger to be completed. Either way, the iPhone 4 will probably be replaced with the next model by the time T-Mobile customers get their shot at an Apple smartphone. What we see is probably just Apple testing a T-Mobile enabled radio, using the current iPhone hardware although we might add that the proximity sensor is said to look different than the one on the upcoming white iPhone 4 launching by month's end.
Either way, it looks like T-Mobile USA customers will get a shot at buying an Apple iPhone. As far as when, well, that still is up in the air.