The Leap Motion Controller is a motion controller in the form of a small rectangle that you wave your hands above to control your PC or Mac. There are reasons that someone might need a Leap Motion but they are fairly specific and, if you are reading this review, probably don't apply to you. I really like it and absolutely think it was worth the $80 asking price. If you have $80 to burn and don't mind taking a chance on a device, the Leap Motion Controller is certainly worth it. As there are new updates and new apps released almost daily, I've very hopeful that the Leap Motion will evolve into something essential. As it stands, it is more of a curiosity. Discuss "Leap Motion Touch-free Controller Review" here. Read the article.