HCI

Portable

http://www.wearablepersonalcomputer.com/

http://www.tekgear.com/twiddler3.html

Split

https://www.kickstarter.com/projects/70308014/kings-assembly-a-computer-mouse-full-of-awesome/description

Oobly - https://geekhack.org/index.php?topic=49721.0

Commercial

https://www.kickstarter.com/projects/70308014/kings-assembly-a-computer-mouse-full-of-awesome

GamePads

1. Belkin N52TE

1. Belkin Nostromo

1. Razer Tartarus

1. Razer Orbweaver Elite Mechanical USB Gaming Keypad

1. Logitech G13 Advanced Gameboard

1. ZeleSouris Mini Gaming Keypad

Single unit

https://github.com/technomancy/atreus

Misc

finger and thumb trackball

Me DIY

thumb joystick

https://developer.mbed.org/users/AdamGreen/notebook/joystickusbmouse/

http://www.aliexpress.com/item/Free-Shipping-dual-axis-xy-joystick-module-PSP-2-Axis-Analog-Thumb-Joystick-Module-Thumb-Joystick/1879823015.html

Arduino combination

http://www.arduino.cc/en/Main/ArduinoBoardProMini

AdaFruit:

1. Arduino Pro Mini 328 - 3.3V/8 MHz

1. FTDI Serial TTL-232 USB Cable <-- http://www.electrodragon.com/product/pl2303ta-usb-ttl-usb-serial-cable-win-88-1-compatible/

1. FTDI Friend + extras - v1.0

http://uk.farnell.com/ftdi/ttl-232r-3v3/cable-usb-to-ttl-level-serial/dp/1329311

http://wiki.pinguino.cc/index.php/SPP_Bluetooth_Modules

http://www.highqualitybuy.com/6dof-3-axis-gyroscope-and-accelerometer-sensor-module-for-arduino-mpu-6050-BI00096.html?currency=GBP&gclid=Cj0KEQjw4qqrBRDE2K_z7Pbvjo8BEiQA39AImc1alqqZi4Ty6_7UmJ-K3p9ygwJWckq3ntVz9__sOqUaArqq8P8HAQ

http://www.ebay.co.uk/bhp/bluetooth-module-arduino

https://github.com/kriswiner/MPU-6050

http://diyhacking.com/arduino-mpu-6050-imu-sensor-tutorial/

https://decyborg.wordpress.com/2013/09/08/bluetooth-serial-communication-with-arduino-jy-mcu-bluetooth-and-macbook-pro/

Mapping OSX Keys

http://xahlee.info/kbd/Mac_OS_X_keymapping_keybinding_tools.html