I already talked to Verizon, and got instructions. Dial *228 option 2 to update my PRL before I go, switch to global network in settings, and that calls will cost more (about $3 a minute in the Philippines.)
What I couldn't ask Verizon is if a custom ROM will affect me. I'm running MavRom 4.0. You guys think it's safe, or should I switch to stock rooted for my trip?
Also, I got a list from Verizon on how to dial numbers when I'm in Japan and Philippines. Do I need to dial any special numbers when texting? And I do know texting will cost a bit (50 cents outgoing, 5 cents incoming).
And finally, will my apps try to access the network and incur charges for me, like Facebook and Dropsync? Is there a way to deny them access when I'm out of Country and not in Wifi? Or should I uninstall the apps that access the net?