Okay.. so my situation is this. I moved into a new apartment community. AT&T dropped the ball. So until SOMEONE installs a fiber optic line into the newly built property, AT&T/Apartment community has provided everyone with a Unlimited 4G USB data card. How do I turn my MBA into a wifi hotspot of some sort so I can use an iPad via wifi's? I sold my iPad to buy the MBA but eh.. Good excuse to buy The New iPad Is it possible?