I have designed and built a robotic 1/10 scale radio control car (See link below).  I added an Arduino Nano to a HPI Sprint.  I have been using Windows based Arduino C code.  This package is too limiting.  I am considering getting into http://www.ros.org/wiki which is LINUX based.
 
"ROS (Robot Operating System) provides libraries and tools to help software developers create robot applications. It provides hardware abstraction, device drivers, libraries, visualizers, message-passing, package management, and more."
 
Are any of you WLUG members ROS-ites?  My Linux skills have degraded due to lack of use (and old age).
 
Here's a pointer to a youtube showing my robocar being a robot and what it is built of.
http://www.youtube.com/watch?v=J-rgkt8WDXQ
 
Ken Jones
Fitchburg