not in the list was one of the "hybrid" touchscreens: the Blackberry Storm, with its touchscreen actuated by a tactile switch positioned behind the screen. I really liked the "tactile feedback" idea, but a single pushbutton in the dead center was tough to click when your point was somewhere in the corners
currently working on a 'tactile' flat keyboard with silkscreened regions on a circuit board corresponding to a typical keyboard layout. it uses specific rumble motors to bump the board at different intensities and frequencies when it detects a keypress, letting you emulate certain switches like "Model M", linear, 'clicky', etc., but I haven't managed to make the finger detection circuits/firmware reliable enough for a daily driver
riffing on the Storm's idea, i'm wondering if I can make the motors work double duty as detectors as well as actuators...
Worst touchscreens were the pressure sensitive ones on classic palm and windows mobile phones of the 2000s. Palms were especially bad and for some reason would always drift.
currently working on a 'tactile' flat keyboard with silkscreened regions on a circuit board corresponding to a typical keyboard layout. it uses specific rumble motors to bump the board at different intensities and frequencies when it detects a keypress, letting you emulate certain switches like "Model M", linear, 'clicky', etc., but I haven't managed to make the finger detection circuits/firmware reliable enough for a daily driver
riffing on the Storm's idea, i'm wondering if I can make the motors work double duty as detectors as well as actuators...