I've just put up new versions of both VoodooPad and Acorn. You can grab em' both from the Flying Meat website, or use the auto update mechinism in both apps.
Both have bug fixes, and a couple of new features. Acorn's update is mostly to fix a handful of crashers and a couple of new features that lots of people have been asking for. VoodooPad's "wiki markup engine" (vroom vroom?) has had some minor tweaks so that it won't wipe out custom links pasted from other apps, among other things.
VoodooPad release notes.
Acorn release notes.