Hey all, I have a 3GS running 3.1.2 on AT&T. I've JailBroken it before, but restored back to normal because I personally wasn't using JB features. Soon, I'll be moving to Taiwan for six months, and I'd like to know your suggestions for using the phone on Taiwan's ChungHwa network, which is also the official iPhone carrier there. I know that I'll need to JailBreak and Unlock. What's the best way to unlock currently for 3.1.2? I'll most likely just be buying a pre-paid SIM once I'm there, since I don't want to mess with contracts. And I know that using data on pre-paid is pricey, so I'd like to disable the cellular data completely. I once heard there's a carrier-settings file that can turn off the EDGE/3G connection but leave WiFi enabled. Anyone have experience with using that option? Thanks for the help!