So I have an iphone 3GS with iOS 4.30. Ive never jailbroken and really wasnt interested in it until an unteathered solution came out. I realize now that we have an unteathered jailbreak for iOS 4.31. Unfortunately, I missed the update to 4.31 and now only have the choice in itunes, to upgrade to 4.32, which, I realize does not yet have an unteathered jailbreak. So my question is, can the current unteathered 4.31 jailbreak be applied to an unjailbroken iphone 3GS with 4.30? Ive never jailbroken before, so this is new territory to me. I was having a lot of issues with keyboard freeze on previous iOS 4.x releases. This was finally fixed with 4.30 (at least for me) and Ive not been in a rush to change anything. Assuming I dont install anything, would jailbreaking slow this phone down at all? I dont plan on doing any customization at all, Id just like to test out a couple of apps that are unavailable on the app store. If they result in slowdown or any other sorts of bugs, Id remove them. But, can anyone tell me, in theory, would a jailbroken iphone, without ANY installed Cydia apps/packages perform any differently than a stock iphone? Thanks everyone!