MakeITmine lets you remove the default carrier name like AT&T and put your name out there. The app also lets you customize the banner i.e. put a custom name instead of the clock that appears by default. All you have to do is enter some text in the white box and press either Carrier or Banner on the top to replace either! Sweet…
The hack works swiftly on our iPhone 2.2 without any glitches. All done in a matter of seconds. This lightweight app is a real utility.
Search for ’makeitmine’ on cydia
Cydia is an 3rd part apps aggregator / store, that Installs on Jailbroken iPhone 2G / 3G/ 3GS and iPod touch… Info here