I am currently working on, a picture mosaic program. I will post the beta soon. The beta currently only converts pictures to ascii art. The true picture mosaic generation is broken, and I'm working on making that functional. Stay tuned for more in the future.
I'm also finding my way around Joomla!, so as soon as I can get the site the way I want I'll add a download section, mail section, and bug report. I will also see how to implement a feature request section for users. We will see how quick I can get this set up.