The magnet design is genius. It basically solves the thickness problem that can be a dealbreaker some days, without the need to replace the OH (which is quite difficult with custom-made OHs). I think a tiny "sliding channel" would be very welcome to guide (and secure) the open/close movements. This would be especially useful as there are only four magnets on the base part, which means binary positions, which in turn means risk of failure in between. A single and shalow sliding channel would be enough, no need for one on each side. I am sure you are already using the shallowest thickness available at Shapeways, so I guess the "female" part of the sliding channel would basically be a vent, i.e., a hole going all the way through the plastic. That shouldn't really be a problem though. The base part would obviously be optimal for the female slide, as it does not increase thickness when the keyboard is detached, and does not prevent putting the Jolla flat on a table. Naive sketch below: http://reho.st/self/6b00cac4fc7a9851...cd88826eaa.png