Here we go: I have an iPhone4, and a wifi-ONLY iPad. AT&T has one option, which involves purchasing a MIFI wireless hotspot device and subscribing to (yet another) data plan. I haven't jailbroken since my 3G iphone about a year ago -- but that allowed me to use the data plan I already pay for to tether a connection for my iPad. I am considering that again now -- but I'm open to some other options first. Suggestions from anyone with experience will be most appreciated!