Simple countdown timer with fullscreen graphical display on the composite video out and extension to the Matelight 0.00061 Megapixel display: http://github.com/jaseg/matelight
Needs http://openframeworks.cc/ to compile.
cd /path/to/of_v0.8.4_osx_release/apps/myApps/
git clone https://github.com/c-base/hackandtell-raspberry.git
cd hackandtell-raspberry
make && make run
# or use XCode or other IDE to compile