i've been trying to figure out if i would like to root my T-Mobile G1. i have unlocked it and it now works in Mexico with TelCel where i just buy minutes every so often. i don't use their data network because it's more expensive and because the WiFi works on my home and work networks very well and i just use SipDroid for calls when in the U.S. and the TelCel system for just regular phone calls when in Mexico. Will i have to unlock this thing again if i root it? Have a great evening!