I have a question, now that the iPhone 5 will be using a new, smaller (and incompatible) SIM card compared to the 4S. My mom will be joining our family plan, and I was wondering if it would be possible to have her take my 4S and I would take her new line discount and get an iPhone 5 on my line. I thought it would be a simple switch of SIM cards before the announcement, but now with the announcement would the in-store employees be able to do this for us? I like the 5 but not willing to pay more than a new line price to upgrade from my launch-day 4S! Thank you for any help!