Hey Gang, So I just got my iPhone 4 and love it. My wife, who so far has been fine w/ her GoPhone w/ texting plan is starting to sweat my iPhone. Thinking maybe next year would be a good time to get one. Of course, me being the IT Mgr and tech/gadget guy I told her it'd be a great idea - because I plan on pushing my phone down to her so I can get whatever the new goodness is. So, my question is in one year's time when the new one comes out, how does one go about snagging it at the discount/promo price and switching lines? Can I get one 'on the cheap' via ATT as my 2nd line, than swap sim cards and away we go? What's the process? Thanks !