probably many have noticed it already: OpenOrienteering Mapper is a free alternative to OCAD. Today version 0.4 of the software was released, which brings many new features and improvements.
Among them are for example the possibility to follow existing objects while drawing, a ring menu for quick access to the most common drawing tools and the ability to load templates which are georeferenced with world files. Furthermore it is possible to setup a map grid, the application loads the Swiss Scool symbol set correctly and supports a new XML based map file format which makes it easier for other programs to access the files.
We recommend the update for all users of the 0.3.x versions, and in case you're a mapmaker and haven't tried it yet I'd of course recommend to do that

The complete list of improvements and the download link is in the official announcement:
http://oorienteering.sourceforge.net/?p=126
Best regards,
Thomas Schöps