I have AT&T's unlimited data plan for the tablet since iPad1 3G launched. Now I gave my iPad3 LTE to my parents but I still have a SIM card with me. The question is am I able to use that unlimited data plan with the unlocked hotspot device such as AT&T elevate? If anyone is using that, I also would like to know have you ever gotten throttled your speed? I heard AT&T throttles the speed of the Smartphone's SIM card but not for the tablet one. If iPad's unlimited data plan SIM card works with the hotspot device, then I'm gonna cancel TWC's internet service.