Check out this cool concept from designer Alexei Mikhailov, the iStick.
Designer Alexei Mikhailov isnt out to convince people his iStick concept is the perfect mobile convergence device. In fact he clearly points out the iStick isnt for viewing movies and the screen is too small for effective photo viewing. What it does have is a visual replication of the iPhone/Touch space inside a device the size of a lipstick tube.
Big square icons and of course Coverflow let you navigate the Mac way. Whats interesting is his surface design. All four surfaces are touchscreens which could present some interesting and unique interface design. The integrated WIFI also enables you to browse iTunes. Its not an iPod replacement per say. Think of it more as a big brother to the iPod Shuffle.
Via Yanko Design