Got a Mac mini in your home-entertainment system? If so, chances are you've wished for a compact, but usable, input device.

During this week's Macworld Expo, SMK-Link is showing off a prototype of the company's upcoming Ultra Mini Keyboard for Mac.

About the width of a gaming-console controller, but a bit deeper front to back, the Ultra Mini features a full thumb keyboard along with a trackpad, media-control pad, and directional pad. The keyboard will connect to your Mac using the included RF USB dongle.

SMK-Link expects the Ultra Mini to ship in a couple months; the estimated price is $60 (about £38).