Someone sent me a link to Hackzine which had a cool project for a homebrew GPS tracker that uses a cell phone Open GPS Tracker which has some serious spy potential.
Anyway, looking through the Hackzine site I stumbled across something way cooler. It's called Beagle Board. A 3 in. by 3 in. motherboard based on Texas Instruments OMAP3530 Processor that's used in various smart phones that run things like Google's Linux based Android Operating System. It runs on 5 v. is fanless and only draws 2 watts. Basically, it's a fully capable motherboard with laptop like performance for Linux embedded distros like Debian, Mojo (Ubuntu), Mamona, Android, and Nokia's Maemo.
Possible uses are Google Maps (with cell modem in USB) , MP3 Player, Video Player (Not while riding please) recording video (plug in a laptop net cam), VOIP on the Road ..... That's just off the top of my head. Anyone have any other thoughts about besides journaling your ride on the internet while on your ride