Video to come pretty soon.
A (foldable) Bluetooth keyboard used for typing on an Android G1. Works with all applications on the G1 that accept keyboard input.
Even though the G1 has a built-in QWERTY keyboard - this external option might be interesting for typing longer text while being e.g. in a train or at a cafe.
The setup uses the Linux Bluez Bluetooth stack and the uinput mechanism - both there on the Android device.