I bought a iPhone 3GS with iOS 4.2 that I have jailbroken and unlocked to use on a different carrier than AT&T. This obviously required me to download Cydia through Redsn0w to jailbreak it, and I used Ultrasn0w to unlock it. Now that I have successfully done this, I no longer want to have Cydia on the phone. Could you guys help me in removing it? Also, will this effect the unlock? And will this for some reason not allow me to update later on? If I needed it later, couldn't I just re-install it through Redsn0w? And if I do delete it, will I ever need to download it again? I did look this up and found other threads about the topic, but no one really gave a clear explanation. Also, none of them were about deleting it on IOS 4.2. Oh, and I also had to change the baseband tO 06.15 if that effects the situation at all. If you guys could help me out, it would be most appreciated.