Fun but not feasible.

Damn, reporters are dumb. Often times, they just don't really "get it" and spew out a bunch of boring idiotic talking points. There's no indepth analysis, no thought on the veracity of claims or any sort of journalistic "digging" that we tend to think of journalists doing. This, by far, does not mean all journalists, mind you, but it does describe quite a few of them.

What am I prattling on about? The notion that 3DV Systems’s ZCam will revoltionize gaming. It won't even make a dent in gaming, it's been done before, and it doesn't even really work very well.

Soon you’ll be able to ditch your game pad and Wiimote. A new camera system for computers and consoles will track your movements in three dimensions — essentially turning your body into the game controller.

For example, play Rock Band by waving your hands at imaginary drums, or dodge punches in a fighting game.

Ummm. Yeah. No. The reason? The visual misques would be significant and would drastically affect gameplay. There's a reason why you hit buttons. They are accurate and they can't be misread. There are numerous games that have tried using cameras that have worked to varying degrees of success, but the idea is just not solid and most of the time there are numerous logistical problems with these games. One of the main issues that I forsee is the fact that having to wave your arms around and having to do noticeable movements (to be read by the camera) can be rather exhausting over extended periods of time. I don't know about other people, but I play video games to relax, not to break a sweat. If I want/need to exercise, I'll take a jog, ride a bike, or just plain work out.

The ZCam could even work with current games, using software that lets it take over for mice, joysticks or other controllers.

3DV will supply the technology to companies, which are expected to sell the cameras for about $100 around the end of the year.
- Source

And expect it to fail massively. During Johnny Lee's video where he showcased finger-tracking with the Wii-mote he made a very good observation. Sure, it looks really cool to do and it's fun for a little while, but it will wear out your arms for any sort of extended use. This device might sound neat, but it's not going to work well as it's going to make playing video games uncomfortable and exhausting. If you need a way to get the damn kids outside to play and get some exercise, just unplug the console.