There are all kinds of useful wearable tech that replace or supplement stay-at-home gear. Now NEC has ARmKeyboard, a device that isn’t even corporeal; it’s a virtual keyboard that runs up your arm.
The keyboard/software coordinates glasses with a camera display and smart watches. Wearing the glasses and looking at the watch gives the software the coordinates of the devices; it then projects a full QWERTY keyboard on the users arm. The camera picks up the location of keys as they are hit.
NEC believes that this technology will be particularly useful in industrial situations, where ambient sound can interfere with voice commands, and in hospital settings. And does seem to be ideal for any situation where juggling hardware is neither efficient nor possible.
The keyboard software is compatible with mobile and wearable devices made by other companies, and is touted to be the future of data entry in general. One website pictures several virtual keyboards, including a piano. Well, maybe so, if you like typing with one hand or playing only the bass line.