Buckling spring
USB, PS/2, and Bluetooth support.
LiPoly battery for Bluetooth. Charged by the USB or PS/2 connection.
Integrated USB hub with additional USB ports on the left and right side.
Programmable via a micro SD card that has a simple XML file describing the scan codes sent for each key
Transparent Key stems
Integrated LED for each key. Or Promethium-147 radioluminescent ink used for the keycap legends.
Each key is a separate switch with an integrated diode to prevent ghosting.
PS/2 version would have N-key rollover.
Each key is secured via a bolt to a back-plane.
The back-plane has trace positions for key in many different locations (so you can add more switches).
Open source and fully programmable firmware (loaded from the SD card).
A reset switch on the back.
Adjustable weight and tilt.
Integrated PIR motion detector that sends the "lock computer" command when you're no longer in front of your computer for 15 seconds.
No CapsLock key. Instead another modifier key.
No NumLock key. Instead another Esc key. The number pad is just numbers.
No ScrollLock, Print Screen, Break/Pause keys. Instead F1-F30!
No Insert-button. Instead a "Close" button that the OS understands to mean "close the window with focus".
Some extra keys: Lock, Sleep, and Power.
Extra modifier keys: Option, Function, Command, and Cmd.
137 key format (see the picture below)
