Hi I know this may sound weird - but I am hoping to be able to tell the difference between a 2nd gen iTouch and a 3rd gen iTouch while they are still in the package. On Friday, i am expecting to receive my iTouch (a gift, not from the Apple Store) and I want to know if it is a 3rd gen iTouch. If it is not - I would like to leave it in the package and try and sell it "as new" for what I can and turn around and get a 3rd gen iTouch. If I open the package and find out it is a 2nd gen - I can't sell it as new. Thanks in advance!