the companies like Asus, Dell, HP, and Lenovo will include 3D-depth cameras inside the screen bezel
around the second half of 2014
since 2010 when intel joined partnership GestureTek and then Omek the gesture recognition company this year.intel has been working on perfecting its design.
for a while now consumers had to acquire expensive external cameras to mount the their computer to have this feature available.and now
intel has built USB module small enough to fix inside the screen,we can expect it to be available on laptops and the all-in-one computers and to be shown at Intel Developer Conference.
source:http://www.theverge.com/2013/9/11/4719380/asus-dell-hp-and-lenovo-will-embed-motion-tracking-cameras-into