I plan on selling my iPhone in the next few days (you know why) and was wondering if I am violating my contract with AT&T. I plan on using a RAZR temporarily, so would that mean I have to change my plan from an iPhone Data Plan to a regular cell phone plan? Also, do you THINK that I can use my iPhone's sim card with the RAZR and then use it with the new iPhone when it's available? And lastly do you think (obviously no one knows) that I will be able to buy the new iPhone without extending my contract? Thanks in advance.