Game Boy is not going away any time soon. The number of people using handheld game players will grown from 23 million last year to 43 million in 2009, when they’ll be a $2.7 billion market, CNET reports, citing a Jupiter Research study. “The study looked at users of game devices … as well as people who play more than five hours per week on PDAs (personal digital assistants) and cell phones – a group expected to grow at an average annual rate of 16% through 2009,” CNET adds. The most interesting figures, though are the age and gender breakdowns: Of the 17% of online adults who own handheld game devices, nearly two-thirds are women. Teens are “almost the opposite”: of the 34% of teens who own handheld game devices, nearly two-thirds are boys. Game devices were a major draw at this week’s huge game show, Electronic Entertainment Expo, E3, in Los Angeles.