I just tell them its a Basic flip phone, $45 plan compatible with unlimited talk/text and 3G, although 3G is a bit slower on 45 plan then it is on $50 plan, but my customers would rather have it a bit slower and unlimited, then somewhat faster with 2.5gb data cap.

Just wait for ios7 untethered jb to come out, and support for flashing it will soon follow, thanks to Rich and other iphone gurus.