What application did you use to make these fonts in the first instance?
I would quite like to have a go at making my own font icons. Could be quite useful in replacement of spritesheets.
It'd be really interesting to hear from you in more detail about this process, and any gotchas that you came across during the process. If you ever get time for a follow-up blog post I think a lot of people here would enjoy the read.
Slightly offtopic, but why is Font making software so damn expensive? I'd love to help on this and other open source font efforts but there's no way I am buying $400 software.
Corel Draw for windows has TTF exporting built-in. I think this should be an AI feature.
There is an open-source font-making program called FontForge. Some people complain about it but I've used it to make several fonts without too much difficulty (besides, of course, the inherent difficulty of designing a good typeface).