After getting a replaced iPhone 4, do they update the firmware on each of the phones? I've heard you get an un-marked box with an either refurbished or brand new iphone, none of which matters to me. I am concerned weather or not the new iphone will have 4.0.2 or 4.0.1 or 4.0 or do they even bother updating all the refurbished phones? or im not too sure about how it works. I've only had this phone for about 3 weeks. Still have a couple of days left on my 30 day warranty.