Mostly my PHP projects lately: my take on ORM (ORMer); a database abstraction layer (dbFacile); and some others. They're all geared at making things easier on the developer.

Also started a console multiplexer app called Knox a few years ago that's been sitting dormant.

They're all at: http://greaterscope.net/projects

In addition to those I submitted a patch to Xynth a few months ago for Debian support (http://xynth.org)