I've been editing quite a few fonts recently. The fonts are PS fonts for Mac, but I do the editing using PfaEdit on Linux.
I've surprised myself by contributing several bug fixes for PfaEdit. I'm impressed with PfaEdit, it is certainly a lot better (for PS fonts) than the old copy of Fontmonger we have.
I've noticed that the world of fonts could do with more attention from the free software community. Hardly any fonts are available with a GNU (or even BSD) licence. It would also be good to have some really high quality ttf fonts like Verdana or Tahoma - I guess I'm going to have to learn TrueType programming and get hinting.
Unfortunately, I still largely make my living (or should that read earn my pittance) by making and or selling closed source software. Anyway - today I'm applying for a grant to do some localisation of free software into Maori language. My ultimate goal is a complete desktop and application suit in Maori along with some quality educational software.