First Look At The Heavy Metal Suits From Avatar: Friend Or Foe?

Check out a glimpse at the technology from James Cameron's futuristic action movie Avatar. The robotic hands lead me to believe it's some sort of power suit, but I'm not sure what to make of its robo-feet.

MarketSaw has the first look at James Cameron's power-armor. We know that the film utilizes alien avatars for humans so they can go places their bodies can not. Are these power suits an alternative to the avatars, or a different type of avatar?