The spring-loaded technology behind the Steadicam has just found another use -- the x-Ar exoskeleton arm, which attaches to your wrists to reduce or eliminate the feeling of weight. Just unveiled at the Applied Ergonomics Conference in Florida this week, the mechanism mounts to a chair or other stable object and loosely cuffs your arms, allowing for a fairly extraordinary range of motion while bearing "the weight of your arm and small objects." (Sledgehammer-wielding workers will probably be better served by one of these.) While manufacturer Equipois suggests that the arm will likely see use in factories, assembly lines and the like where workers are subject to repetitive stress, we can also think of a few bloggers who wouldn't mind taking a little strain off their wrists. PR after the break.