Sure, the Samsung Vibrant's a T-Mobile device and the Samsung Captivate belongs to AT&T, but there's no longer any reason you can't swap them around -- all you need is a simple script and a USB cable to completely unlock your phone. Dagentooboy of XDA-Developers discovered that Galaxy S unlock codes aren't kept in a secure remote server, but merely stored in a .BAK file on the device itself, which you find with a hex editor and key right in when inserting a new SIM card of your choice. We tested it out on both Vibrant and Captivate and were up and running in less than five minutes each time, and
