[brokin]

I have a sprint touch pro 2 and i have a few questions about the upcoming unlocker. I unlocked my old touch pro by simply syncing my phone and running the app on my PC. This new Hard SPL unlocker seems a little different. So when it comes out i will run an app while my phone is synced and my phone will be unlocked. The part i am really confused on is the SIM unlock. All i want to do is install ROMS and update my radio so will i need to unlock my SIM? I use the sprint service and have never had an issue with signal or anything.

On a side note this is my work phone and i may be traveling internationally soon so will that require me to SIM unlock. Basically it boils down to the fact i have no idea what the SIM unlock will do or why i need it at all; can one of you nice people clue me in?