[who_would_fardels_bear]

All we need is a pair of glasses that projects whatever seemingly small or large size object we need on our retinas. The glasses will have a built-in headset so we can hear/talk. They will emit some sort of infrared light that we can move our fingers through to simulate key strokes, swirls, etc.

No need for any kind of gadget, no matter how big or how small or how bendable.

[Boogieman]

Another feature for your dream smartphone...

Motion detection on the retina to move a cursor, combined with wink detection. Look at something on the screen, and close your left eye to “left-click” the cursor, or your right eye to “right-click”. Come up with some simple wink patterns to handle different click/select/drag actions.