I have Sprint at this moment. I've had Sprint for a little over 5 years. I plan on switching to Cingular when the iPhone comes out. I'm going to get the 4GB model because I already have an iPod and more than 8 gigs of music. I've read about the iPhone, looks great. I'll be able to surf and send e-mail from my phone. The accelerometer feature looks awesome. What do I need to know about Cingular. Like I've said I have Sprint. What plans are there, how's the coverage, all that other stuff? Thanks.