While it sounds in some ways like a good idea I think even us gaming geeks would have to go along with this comment from the article
But Joe Laszlo, a technology analyst at Jupiter Research in New York City, is sceptical. "I cannot ignore the high silliness factor of nouse," he says. "People baulk at doing things that require them to look silly and there is ample room for looking silly here."
I'd love to try this for Raven Shield. If they don't screw up on side-ward movement, you could peek around corners making the peek-around-corner movement with your head! *bang*.
How about using it at the deli ordering computer. Instead of a touch screen that every snot nosed kid runs up to play on ,you don't have to touch it yourself now. Just move you head and eyes.