Apple left a rather small space for operator name, so if it's above 7(?) characters, it will scroll, and display only first part (click picture at right). I found a way to decrease the font size, making it fit.

Load the following file in a Hex editor:

System/Library/CoreServices/SpringBoard.app/SpringBoard

Font size should be at offset 7C176. In HxD, just click "Search → Goto" and set offset to 7C176 as shown in picture below. If the font size is not at this offset in your file, you can try a text string search for loopOperatorToBeginning, it should be right above that.

   

As you can see, you can also change the font type, and color of the text. Default is size 14. Changing it to 11 or 12 should do.

Update: Here is a way to set a permanent carrier logo. I have created a few logos for norwegian users (screenshot below): Telenor, Netcom, Tele2, Chess, OneCall. Download here. Remember that you will need to change pictures manually if you switch carrier.

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