This is the craziest joinery system I've ever seen. Lamello's Invis system of knockdown fasteners consists of male and female parts that are sunk into your workpieces-to-be-joined. Once the pieces are lined up, a magnet inside of a plastic box is then attached to your drill. You spin the drill near the fasteners, and the screw in the male part starts turning. Here's a demo of a guy using it to attach stair treads:
Here's how it works:
As you can see, the system relies on the counterbores being precisely perpendicular to the surface. While they recommend using a CNC machine for this, it can also be done (a bit more laboriously) using their pin-and-jig rig:
It seems quite a bit of work to go to, just to get knockdown fasteners that are invisible, but I guess it all depends on what your application is and how often you'll be disassembling your piece. What I'd love to see is a work crew assigning the new guy to take something apart using the system—when he's got no idea where the fasteners are.