Nonchord mode, or Direct Key Mode, makes the Twiddler function exactly like a keyboard by supporting key active and key release. By eliminating chords, each button state is now set to the host in real time. So a press, hold and release of a key will register to the host as a press, hold and release as they happen. The standard Twiddler Chord Mode would wait until any key in the chord was released before sending the HID stream to the host. This has many applications for programs that require all three possible states of a key - press, hold and release.
This feature does limit the number of keys you use on the Twiddler though. Where there are 1000's of different chords you can create in Chord Mode, Direct Key Mode limits the number of keys to 19. You can still customize your layout but are limited to one keystroke per key press and one key per chord.
If you are interested in testing this feature out please click here: http://www.tekgear.com/contact/ and open a new ticket with the subject: Twiddler Direct Key Mode Tester. We will get back to you with information on how to get the new firmware and how to enable the feature in your configs.