I currently have an Android with an unlimited data plan with Verizon and am thinking of going to ATT for the 4S, though I will not be able to get unlimited data if I switch. I use to stream Pandora in my car all the time, though I haven't done it for a while since I got a new car with Sirius in it. 1.) If I start streaming internet radio stations in my car every day, can anyone give me some idea of how many GB that will take? 2.) Is there any current iPhone feature or some upcoming feature that will make having unlimited data more appealing/useful? 3.) What would I have to do to hit or go over a 2GB limit? 4.) Will these unlimited data plans all be obsolete once 4G takes off? I'm guessing the unlimited plans will no longer apply to 4G service. Anyone know? Thanks!