Ok, well I'm about to jailbreak my iTouch, but my friend was saying how it gets slower and a little more buggy once you do so. Is this true for any of you guys? Have you guys noticed any changes after jailbreaking? Also, I hear that jailbreaking voids your warranty. How would Apple or Best Buy (the place I bought it) know that I jailbroke it if I restore it. (Hypothetically speaking).