We've recently seen some great options surface for unlocking our iPhones. For instance, AT&T recently started unlocking off-contract handsets. And then of course there is the new SAM method that popped up over the weekend.
But the competition hasn't stopped GEVEY from releasing a new SIM interposer. In fact, it's stepping up its game. The new Ultra 5.1 for the GSM iPhone 4 supports more basebands and has more features than ever before...