Apple Wireless Keyboard used with an iPhone 3G

Here is a short video showing the interacting devices (Apple wireless keyboard, iPhone, communicating over Bluetooth) in operation.

Feels like getting closer to the mainstreaming goal - it uses hardware that comes of the shelf (unfortunately you still need to have access to a jailbroken phone), uses a packaged application, does not expose bits and pieces to the end user, just works with all the applications that use the standard on-screen keyboard - and finally: it may just help you doing something more efficiently or comfortably.