"Game changer" isn't a term that ought be thrown around loosely. It's the kind of thing that loses value each time it's uttered -- sort of how everyone's a "genius" of some kind or other these days.

Weeks after 3D printing startup Makerbot announced that it would be selling a 3D scanner, a Canadian startup called Matterform has upped the ante: a C$450 ($443) “Photon 3D Scanner.” Since it was ...