@tr|n|ty & Fighteden
Did both of you use custom carrier bundles? I'm using digi also but never encounter such thing.

@Fighteden
Thats normal with EDGE. Its a one way thing, if u surf u can't be reached. If u talk on the phone, any app depends on net will disconnect. EDGE does not work like 3G where data and voice can use simultaneously.

Carrier bundle is not carrier logo. Carrier bundle have all the settings for the carrier i.e APN, service name, carrier alternate logo and etc. If you look in carrier.plist there's an option to turn off that thing (if not mistaken). I've haven't had the chance yet to CSI the carrier bundles if the old one's are compatible with 2.0.1.