As Ioachim just announced over at his site, maped3 now has brushes!
There's also a call to all y'all. Here, in his own words:
As this time I’m really getting into Maped, this is an official calling to all the Verge community: please ask for features, report bugs and give ideas of future development. So, people, any ideas?
This is an alpha of the brush system, but fun to play with.
Download a build here!
The source to the project is available at http://www.verge-rpg.com/svn/verge3/branches/mapedprime/ (anonymous/anonymous).