I have completed my 2 years with ATT with my iphone 3GS, and I've decided that I would like to delete the data plan, and still use my iphone. I just got off the line with a "Customer Service Representative" who told me that the iphone won't *work* without a data plan, that it has something to do with the sim card. He insisted that the only way for me to save any data $$ was to downgrade to the $20/mo from my $30/mo 'unlimited' plan - a savings of (wait for it!!!) $120/year. I would call ********, but I thought I'd ask around here first. 1- is that true? 2- If I activate the sim card in my ancient moto razr, can I then put it in the iphone 3GS and use it?