The iBikeConsole device is mounted on your bike in pretty much the same way and will let you control your 1st, 2nd or 3rd generation iPod Nano without moving your hands away from the grips, also it will convert your Nano screen into a Cycle Computer display by push of a button on the Key Pads.
You can check your speed, trip distance, and more, it has a nice looking weather housing too. Optional NanoSpeakers deliver high quality stereo music without shutting your ears from ambient noise also provided. The iBikeConsole is available for $76.