TIME's Best Inventions of 2008

Weight loss has never been easier. Nintendo's Wii Fit, which is more a fitness tool than a video game, is an interactive training program that guides you through strength-building, yoga, aerobics and balance exercises. Many of the workouts are cleverly disguised as fun activities, like virtual skiing and ski-jumping, step dancing, even heading a virtual soccer ball, enticing the most stubborn slackers to get off the couch. Players simulate the game's pursuits by using wireless Wii controllers and a digital balance board (which doubles as a scale) that tracks movements and distribution of weight. To evaluate your progress, the Wii Fit measures your weight, body mass index and sense of balance at regular intervals, and charts your results.
Price: $89.99
More Info: nintendo.com/wiifit