I've been using tethering on my New iPad for a few months now, but the Personal Hotspot has suddenly disappeared from the settings screen. I am using a Three SIM. This happened to me once before but came back again after a few days. Anyone else seeing this ? In fact can anyone tell me whether they are successfully tethering with Three from an iPad. And yes, I do mean tethering FROM the iPad i.e. I am running it as a personal hotspot.