I am interested in purchasing the iPhone 3GS but would like to know if I unlock it and jailbreak the iPhone 3GS, will I be able to use the Yahoo IM and all other Apps that are compatible to the T-mobile network?
ya sure you can unlock your iphone mobile using the remote unlocking method you can unlock it because its safe for your mobile............
Get the unlock process for your iphone mobile from this site Super Unlock Codes , here it gives the easy methods to get the mobile unlocked....