[scottbez1]

On a related music/audio note, I recently came across videos of the teenage engineering TP-7 which looks like a really cool application of similar haptic feedback concepts. Unfortunately it's out of the price range where I can justify picking one up just to tinker around with it, so I've only seen videos of it so far.

[poyu]

The TP-7’s disc does have haptic feedback in the menus, it clicks and resists based on the context. It’s a solid design.