Steve,
Good stuff. PHPCollab is a brilliant project, and I truly hope MariaDB hits the ground running after Sun seemed to score spectacular own goals with a perfectly good product.
I've just remembered that Steve Mutinda, Michael Wakahe and Wilfred Mworia contributed to the Ushanidi J2ME and iPhone clients.
Since No one has answered, let me kick this off. I'm involved in contributing code to these two projects:
1. MariaDB http://askmonty.org/wiki/index.php/MariaDB_versus_MySQL lead by the team that developed the original MySQL before Sun took over, and a few ex-Sun Engineers, i am also contributing to this project. soon to be launched. we are now running Beta tests and working on the documentation though its quit stable as of now.
2. PhpCollab v3: http://www.php-collab.com/blog/ development on the original phpCollab stalled a few years ago and a bunch of us decided to pick it up and redevelop it from scratch. Its still in the early development stages.
3. Depending on how i can manage my remaining time i may start contributing actively to Ushahidi in the next couple of weeks.
<http://www.php-collab.com/blog/2009/08/31/updates-from-phpcollab-v3-development/>