Though Apple pioneered the tablet only three and a half years ago, many competitors have entered the tablet arena since. Apple CEO Tim Cook spent no time beating around the bush about Apple's stronghold in the tablet market. Showing a pie chart in which iPads constituted 81 percent of U.S. tablet usage, Cook said, "iPad is used more than any of the rest. Not just a little more, a lot more." This year, tablets outsold laptops for the first time and are expected to overtake all PCs by 2015, according to research firm IDC. Though some partners would argue the 81 percent is almost entirely consumer focused, the bottom line is, according to the sales statistics, iPad is still tablet king.