Sales tracking group NPD has announced the results of a new gaming study, showing that 72 percent of the U.S. say they played games, online play still lagging behind offline, and an overwhelming minority owning more than one next-gen system. NPD says the number of game-players has grown from its last study, up from 64 percent the year prior. More than half of that 72 percent, says NPD play games online, but relative to "total U.S. population," online gamers have only risen slightly from 40 percent in 2007 to 42 percent. 90 percent of online gamers Continue »