Global iPhone SIM Card
Apple has now announced that it's selling unlocked iPhones in the US, which has led many to question whether the company is setting the stage for a 'global iPhone 5'. Others think that the new unlocked iPhone is simply an appeal to international travelers who want to be able to use a micro SIM card from another GSM carrier in their destination country.
Within the US the unlocked iPhone just doesn't make a lot of sense now that other networks besides AT&T also offer the iPhone. It's rumored that AT&T is planning t buy T-Mobile, and if that does happen than Sprint would be the only carrier in the US to not offer an iPhone, although this may change soon as well. That's why some industry analysts believe there is more behind the unlocked iPhone launch than Apple is stating publicly.