See https://gist.github.com/610628 for the original history.
http://gitorious.org/beagleboard-validation/education will be the new upstream.
These labs are all about toggling LEDs.
toggle-led is just a problem statement to toggle LEDs using SYSFS.
toggle-led-qt adds a Qt interface and requests the student to add the LED toggling.
Signed-off-by: Jason Kridner <jkridner@beagleboard.org>