Iambic Keyboard

Iambic Keyboard is an implementation of an iambic keyer to input text on Android. It is used in place of a keyboard.

This video has some information about Iambic Keyers.

Search with the Iambic Keyboard enabled
This is what the Iambic Keyboard looks like. The areas around the paddles are the help, settings, and backspace buttons in clockwise order.