It's not as if there has been any shortage of conceptual contraptions conjured up to control computers with just the brain, but it has been increasingly difficult to find units ready for the commercial market. Enter NaturalPoint, who is offering up a new pair of SmartNav 4 human-computer interface devices designed to let users control all basic tasks with just their head. The AT and EG models are designed to help physically handicapped and health-minded individuals (respectively) get control over their desktops by using their gord to mouse around, select commands and peck out phrases on a virtual keyboard. The sweetest part? These things are only $499 and $399 in order of mention, s
