:O --> "On the one hand, Kinect is an amazing advance, especially considering its low price. On the other hand, the 25-year time lag between research and practi

:O --> "On the one hand, Kinect is an amazing advance, especially considering its low price. On the other hand, the 25-year time lag between research and practice for gesture UIs is slightly worse than the usual fate of HCI research advances. For example, 20 years lapsed between Doug Engelbart's invention of the mouse (1964) and the first commercially feasible mouse-based computer (the Mac in 1984)."