I bought a white iPod touch 8GB a few days ago. After I purchased the product, I went home to register the product on https://supportprofile.apple.com and https://selfsolve.apple.com/agreementWarrantyDynamic.do. I'll include the screenshot of what's happen there : I went back to the store and it assured me that registration in both sites were not important. If I didn't register my product in support profile, would it be hampering my usage/warranty later? Besides, before and after jailbreaking (iOS 5.1.1, I'm experiencing some kind of lag when unlocking. After sliding to unlock, the menu icons appeared but it won't immediately response to my swipes (I'll have to wait for a few seconds before it finally responded to my actions). I didn't if this was factory flaw or just a glitch but it's annoying. What is the common factory flaw of an iPod touch which is noticeable by normal users ?