[robinsonb5]

Back in the ball-mouse days I had this vague notion of including some kind of togglable magnetic resistance on the mouse rollers, to make physical tactile ridges and divisions in the user interface. Probably completely impractical, but it would open up some interesting possibilities.

[PaulKeeble]

It seems like it ought to be possible to add tactile feedback to a modern mouse with gyros that could make certain directions hard to move in but the weight likely isn't worth it with mice trying to get ever lighter.

I quite like force feedback generally, I have a ffb steering wheel from fanatec and a joystick from moza.there is definitely a market for this sort of thing and a mouse that had feedback if only vibration might be interesting. Usually more complex signals are where the value comes in, having a spring/rubber push back on pedals is better than nothing but vibration at multiple frequencies adds a lot and then actual motorised pedal feedback is a whole other level again.

[intrasight]

It would be cool to have the mouse button upon which my index finger rests be a tactile version of the 32x32 grid around the cursor. But I've no idea how you would add 1000 tactile points into that small space.