I recently finished a Pong clone using Kyra. I would like to submit it as an example project that can be used to learn Kyra's various features. You can find it in tar.gz and .zip formats at my website: http://www.gbgames.com/downloads/sdlpong/
It would be nice if my Pong project used autotools, but as I don't know how to set it up to use autotools, it uses a custom set of make files. Still, I hope it might be useful. I plan to write an article or two using this code as an example.