The keypad will mount onto a DualShock 3 or Sixaxis controller and have two shortcut keys that allow you to switch to message boxes and other communication fields. The surface area can also be toggled to use it as a touchpad, that will allow you to control the movement of the on-screen cursor directly.
Communication with the console will be done through Bluetooth 2.0, and the device will have its own rechargeable Li-ion battery built-in. The price point is a bit on the higher side if you'd ask me, and another deterrent might be the placement of the keypad. I mean placing the keypad over the PS3 controller seems like a bad design idea, but I guess I’ll just hold my skepticism until I get my hands on it and try it out for myself.
Those of you who’re really looking forward to it can pre-order it from Amazon.
$50 is a bit nuts, but am I reading this right? It doesn't communicate through the controller, but actually communicates directly to the PS3? That might explain the price, and mean that it would be just as compatible as any bluetooth keyboard. 
