I don't believe there is an option to turn off EDGE/GPRS in the official 3.0 software. So what about changing the APN to a "fake" one? Does the software let you change the APN, and if so, when you change it to a dummy APN does Vodafone NZ still let you access data?
I'm pretty sure I read something here where someone had changed their APN to something "wrong" but the phone still found a way to access data (and charge for it).
I'd like to get upgraded to 3.0 but need to know my options for turning data on and off at will. Thanks.