If I were them I'd come back with some glue remover and walk off with my free iPhone 5.
Already the speculation as to the design of the upcoming iPhone 5 begins. iLounge tells us the following:
The new iPhone will indeed be longer and thinner than the iPhone 4 and 4S. Approximate measurements are 125mm by 58.5mm by 7.4mm—a 10mm jump in height, nearly 2mm reduction in thickness, and virtually identical width. According to our source, Apple will make one major change to the rear casing, adding a metal panel to the central back of the new iPhone.
We all await that fateful day when those of us with iPhone 4Ses will have to fight the urge to discard our 100 percent functional phones in favor of a newer, more expensive model that will be rendered obsolete in a year anyway. Hooray technology!