AFE is a very simple PSF font editor. It is written in Python with wxPython. AFE is public domain.
Click here to download. Afe is about 16kB. The latest version is 20081211. The afe is an executable, just copy it to the appropriate bin directory.
Click to view a 1024x768 screenshot.
In a font window left, middle and right mouse buttons have associated functions. In the editor window only the left mouse button works. Play a bit to deduce what they do.
Currently the afe hasn't got too many features, but it could change in the future.
Send bug reports, feature requests, patches to me.