Proof of concept wearable tech project from MIT Media Lab is a trackpad that can be fitted to the nail of a thumb:
Researchers at the MIT Media Laboratory are developing a new wearable
device that turns the user’s thumbnail into a miniature wireless track
pad.
They envision that the technology could let users control wireless
devices when their hands are full — answering the phone while cooking,
for instance. It could also augment other interfaces, allowing someone
texting on a cellphone, say, to toggle between symbol sets without
interrupting his or her typing. Finally, it could enable subtle
communication in circumstances that require it, such as sending a quick
text to a child while attending an important meeting.
you can put this device on any surface and it will actually type. like. this is a hologram. a HOLOGRAM. I CAN TYPE WITH A HOLOGRAM NOW.
its sold by Brookstone and fucking damn it is the most fascinating thing i have seen in my life so far holy god
Wait wait wait is this like a you hook it up to a computer and type on the light and then words?
yup. simple bluetooth hookup and boom. you’re done. you can now type on your desk with a hologram to send texts, make notes, do literally anything a keyboard can do.
Woah. Woah. WOAH
It’s sold by ThinkGeek too! But it is quite expensive
I'd Much Rather Have a Dragon 