One of the biggest criticisms of virtual keyboards on a touchscreen display is that they offers users no feedback, making them more difficult to type on than a traditional keyboard. Designers have attempted to provide solutions to this problem with third-party accessories that clip onto your display, but Apple may be working on its own solution using coded magnets and ferrofluids that could be built into future iPads.
Reprogrammable Magnetic Fluids Could Let You Feel The Keys On Your iPad’s Virtual Keyboard
