Twiddler2

Twiddler2 is a new version of the keyboard designed specifically for the NK (wearable computer). Tviddler allows blindly on the go type with one hand, and also implements the functions of the mouse.
Interface: 2 x PS / 2 - one for the keyboard connector, the second - for the mouse.
Price (excluding shipping from Canada): $ 200 (+ $ 20 for USB / PS2 adapter)

Twiddler2 is a pocket mouse plus a full-featured keyboard in a single package. The device can be operated with both right and left hand. Twiddler2 connects to two PS / 2 computer connectors for mouse and keyboard.

Tweeddler is an ergonomic keyboard designed for “chord” printing - printing by pressing one or several keys simultaneously. Each key combination generates a specific character or command. 4 keys are for the thumb and 12 keys are for the other four. Using these keys, tweeddler can emulate a standard 101-key keyboard. But his abilities are not limited to this.

The Twiddler two mouse is similar to the IBM Trackpoint device. Using the mouse cursor with the help of the thumb, you can perform “clicks” with other fingers. For example, if the mouse button is pressed with a thumb, the “A” button will generate “left click”, “B” - “double left click”, etc.

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(free and incomplete translation of the description of tweedler from the site Tek Gear ).
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Twiddler 2 can be ordered online at Tek Gear . True, there are no Russia among the countries where tweeddler is being sent, despite the presence of Lithuania, Poland, China and North (!) Korea . He consoles that, together with Russia, the device is not supplied to Ukraine, Estonia, the Czech Republic and Georgia and Moldova.