I love articles like these, this stuff isn't that hard and its way more fun than other ways to spend time (my opinion of course). Making a PCB for a keyboard is really really straight forward too. I bet we could do that on Upverter.<p>I really like the idea that you could use something like an iPad. (or better two iPads) rest your hands on the screen in what are your natural "home row" position. Then touch type text that appears on a screen in front of you while the iPads are busily figuring out how far your fingers are moving and 'tuning' where the other keys should be done. Once you've done like 50 words error free it beeps and send that off. Shapeways makes the cover, Albert PCB makes a circuit board, and you order key switches and diodes from a distributor. Boom a custom keyboard designed by you for you.