open office

iSQL-Viewer is an open-source JDBC 2/3 compliant database front end.

HoudahGPS is a front end to the open source command line tool GPSBabel.

REALbasic Open Source Projects.

Scan IP addresses for open ports.

A free, open-source Java toolkit and application suite for the Amazon.

Free, Open Source, Cross Platform RSS Aggregator for professional users

Seashore is an open source image editor for Mac OS X's

Cog is a free open source audio player for OS X.

JDiveLog is a open source logbook for scuba divers.

Enterprise-class open source mail/calendaring client.