Today, May 19th, is the official launch for the much talked about Nintendo Wii Fit. It’s been a big success in Japan, but is American ready to leave the couch and embrace so called "exergaming"? I think the answer is both yes and no. The Nintendo Wii’s groundbreaking controllers pioneered a new wave of what I call “off-couch” gaming and the success of video games such as “Guitar Hero” and “Rock Band” has solidified that trend on other game consoles. But just how much fun the the Wii Fit?