Morning I wrote this article in which I have listed some Carrier Logos that you can use instead of the default one in iOS. Since the publication of that article until now, I have received quite a few logos, all compatible with Zeppelin and all usable on your iDevices. To be able to use the logos you must install Zeppelin from the ModMyi repo, download the logos, copy them to var/Library/Zeppelin and activate them from Settings>Zeppelin. I thank those who made the logos and sent them to me, and below you have them all listed.
iDevice.ro – by Ovi;
Orange – by Ovi;
Orange – Jenel;
Vodafone – Jenel;
Cosmote – Jenel;
Cosmote large logo – Jenel;
ATB – by atb fan 2008;
Ken Block – viola;
Ford – viola;
Misc - Jenel.
Digi Mobil – Jenel;
UPDATE: You have a new series of logos below.
Digi large logo – Jenel;
Orange logo for iPhone 3GS – Alex F;
Cosmote logo – I.;