Credit Card Sized Concept PDA from Citizen
chris writes "Citizen has unveiled a miniature PDA concept considerably smaller than existing PDAs. The 60 x 90 x 9.3mm 16-colour grayscale PDA is just a bit bigger then a credit card." A bit too large to stow in one's wallet, but it's still a slick form factor, easily hid in a pocket. It runs ITRON4 for an OS, and the battery life is rated at 30 hours.
" I recall it had the serious limitation that you couldn't input data on it, but it was very tiny."
Yes, that's true. It was more of a display device than a PDA. I have a watch made by Fossil like that. It's a big, very big watch. (Surprisingly comfy tho..) Also, it only syncs with my PocketPC and not my laptop. Still, it was handy to have around. I'm a little surprised there isn't a market for teeny little read only devices like that. My watch was great for storing stuff like business trip information.
"Derp de derp."
This seems simliar to ideas that were proposed by Citizen 3 years ago. See This article from Cnet 3 years ago. It details citizen's development of a credit card sized device that could plug into the Handspring Visor. (I remembered this article from my work at visorcentral 3 years ago)
"Handspring and watch maker Citizen are tinkering with a prototype add-on for the Visor handheld that would allow people to copy information from their device onto a second, credit card-sized organizer."
Citizen also helped co-develop the Rex.
...plus Wi-Fi enabled and and it has ARM processor in it: perfect on-board controller for model air-planes.