Got an idea for multiuser haptics.
Basically it's "Control my Handy" feature.
One user sends control my handy invitation to another.
Once accepted another user can control his handy from the web or from the app.
In web it's a mouse control vertical slider.
In the app it could be moving controller up and down with some visualisation. Grip button should add an effect. Perfectly users should be able to watch the same video at the same time