Wow. Looks cool, but at that price, I'd need an integrated touchpad.

When I first bought the keyboard, I was recovering from serious tendinitis in both arms. Imagine it being painful to simply pick up a toothbrush. At that point, you're willing to spend some extra money in the name of comfort. The Kinesis, when it first came out, was $700. I split the cost 50/50 with my undergrad advisor, for whom I was doing research. I kept the keyboard at the end.

Incidentally, I've tried all sorts of pointing devices, and I've settled on a Logitech Optical USB Mouse with the scrolling wheel. It's right next to my right hand (no keypad to get in the way), and it's easy and fast to use. I've tried trackpads, trackballs, and heaven knows what else. I prefer the mouse with scroll wheel.