@isotherm: I'll try that and get back to you
@Pushka: As always, *DON'T* restart your Kindle with a custom .bin in the root folder. I assume that's what happened for this person, because the otaup error codes all start with 'U', whereas the manual updates error codes can look like that, AFAIK).
@JSWolf: We discussed this a bit more in another thread. In short: the fonts packaged in the hack are okay. I don't package the default fonts anymore in the hack itself. As for the rest, that may be somewhat more shady for a very few number of them, but they've been linked with ther hacks for a long time, so I assumed it was okay. Discussing it with mods right now.
EDIT: Pulled a bunch of them, to be on the safe side.