According to an internal iPhone developer tool was leaked onto a website for about 1 hour. 


“According to an internal source at Apple the iPhone Developer Tool has been leaked. The program was nearly available for one hour on a website.Should this information be true, an otherwise impossible software unlock for the iPhone 1.1.2/1.1.3 ootb (baseband 04.03.13_G) would be possible, because this tool allows to reprogram the iPhone and has to come with the “masterkey”(I’m not sure about that translation..).”

Well we will have to wait and see. There are loads of people waiting for a unlock for Bootloader 4.6