I am currently attending the ATypI ’08 in St. Petersburg.
I gave a presentation on African fonts. The main concern is Latin script, used by about 90% of African languages. The presentation and more detailed paper will be available on the African Network for Localisation website.
The ATypI website will also have some of the presentations available for download.
I am currently sitting at David Březina's presentation on General issues of multi-script typography. This seems to be relevant for fonts like DejaVu that support several scripts.