We thought some of the circuitry looked precarious on the glove, too. For the robot hand, he used balsa wood and hinges for each joint. Flexible thread provided the return power like a spring.
Gerrit and I were scoping out the Intel booth at Bay Area Maker Faire and we ran into Nolan Moore who was showing of his work to mash together a Nintendo Power Glove with an AR Drone quadcopter.