Measuring 31 by 15.4 centimetres and weighing a shade less than half a kilogram, the Arc Keyboard is flat along the sides and the front of the keyboard. It rises along the top centre, so that your hands are closer to a natural position when typing.
The keyboard has six F keys; if you want to implement F7 to F12, you'll need to press the Fn key. There are volume keys, but no keys for controlling iTunes playback. Some Mac users may be put off by the Windows key, and you'll probably have to remap in the System Preferences the Arc Keyboard's Ctrl, Windows, and Alt keys on the lower left to match the traditional Ctrl-Option-Command key layout on the Mac.
The keyboard uses 2.4GHz RF wireless technology, not Bluetooth, and requires a USB transceiver (included) that can be stored underneath the keyboard.
The Arc Keyboard is compatible with Windows 7, Vista and XP, and Mac OS 10.4 or later. It is expected to ship in New Zealand in April for a recommended retail price of $99.00.