Microsoft Hardware announced its thinnest keyboard ever “Bluetooth Mobile Keyboard 6000” — made exclusively for Bluetooth notebook and desktop computers. A few millimeters thicker than a AAA battery at the back — the Bluetooth Mobile Keyboard 6000 tapers down toward front, so keyboard’s light and easy to pick up. And to enable small footprint to still deliver ultimate comfort, the keyboard uses a Comfort Curve design for a more ergonomic typing experience over the straight keyboard layout of notebook computers. Keyboard also features a portable Bluetooth Number Pad that helps people stay productive wherever they work. The Bluetooth Mobile Keyboard 6000 and Bluetooth Number Pad will be available in October 2009 for an estimated retail price of $89.95 (U.S.) and $44.95 (U.S.), respectively.