It looks like their plan is to put metal teeth there, and also make the legs entirely out of metal. I’m somewhat skeptical of this design though. There’s going to be a lot of torque put on the legs if someone leans on the keyboard, or if something hits it, especially when the legs are turned away from perpendicular to the table, so the whole thing needs to be very sturdy. Also, it looks like many possible tilt angles are going to require the three points touching the table to not be very well centered around the keyboard’s center of mass; I hope pressing keys in the corner of the board with an angled press doesn’t cause the keyboard to start tipping. Finally, I wonder if they can get a sufficiently large and grippy sphere at the end of each leg to hold the keyboard still and prevent it from sliding all over the place.
Still, it’s an interesting idea. I’d love to see one in person to better judge. It would be nice if they’d show a video of someone setting the legs to different angles and typing, especially if they had a metal prototype.
