Computer ergonomics is a science that keeps getting better and the Switch Mouse concept another attempt to move it forward. The Switch Mouse sits snug in your palm, which lets your shoulder muscles do all the work, taking some strain from your hand muscles.
It also features an integrated pad to keep the heel of your palm comfortably in place while you are not using the mouse. A circular joypad is used for scrolling. So tapping your finger will allow you to scroll up and down and side to side. It can also be adjusted for length which gives you the perfect fit. It’s an interesting idea and may well prove useful.