I only purchased and iphone 3gs about a couple of months ago. I know I am not starting to validate for the ascent on the latest iphone4. though i was only wondering if I was still means to keep my total devise I compensate the $30 a single right now. I operate some-more than what the latest devise is so there is no approach I wish to get the latest iphone afterwards have to compensate the $25 for the latest devise I would deff go over. So would I still be means to keep which devise if I confirm which I wish to squeeze the iphone4 given I am a sincerely latest patron I have no idea. Thanks for any help.