Microsoft's store features a check-out area in the middle and broad windows that give customers a view of Times Square. Melinda George, the store manager pictured in pink at the bottom of the photo, says the store is already running short on Surface supply after being open less than a day. It's likely to run out of certain items, she added. She declined to provide any details about sales numbers, but many of the people leaving the store between 9:30 and 10:30 a.m. ET had bought a Surface.