I believe bpiphany (who did the phantom and ergoDOX pcb's) is in sweden? He's a cool guy.
Yep, the ergoDOX is just the one PCB for both sides. This means you have to be very careful about which side your diodes are soldered. I've built 3-4 or them now, and it's not too bad once you get the hang of it. If you are going surface mount, just remember the line is closest to the square pad.
The reason we could do the flipped PCB is because there are jumpers for some of the components. It's a clever design nonetheless!
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I agree, a good source of switches, especially PCB-mount switches (which can be used for some plate-mount PCB kits, and if not, the pins can be clipped off easily) would be handy indeed. Springs, too.