Hi. I currently have an iPhone 4 with AT&T and, as you know, AT&T does not have an unlimited data plan for smartphones. So I'm stuck paying 15 dollars a month for only 200 MB of data.......basically an iPod that I can make calls from. So I was considering saying to hell with it and just getting a quick messaging phone again and getting the $10/month data plan with it instead of keeping my smartphone. Is it worth making the switch? Should I switch to Sprint or something? (although I've heard they have little to no service where I'm at). Any suggestions?