Thanks for the comments, guys. Where we stand right now is 20/32 modules converted with another in progress and one that will be deprecated (notifications). The D6 version is running and very ready for testing. I have a dev server up at http://d6.bywombats.com if you just wanna take a peak.

For more information, join the Drupal 6 support group and check out the migration status. That post has info on where to direct your testing and review efforts. We haven't touched some of the modules that need to be converted. You can use the coder module to make the job easier, and the modules that have already been done can serve as templates for how to do the conversions. Hopefully we'll be near complete conversion by the Ubercamp and then hack out what's left that weekend. I'd love to get the 2.x out for D6 before Drupalcon Szeged.

The only remaining dependency issue is to get a UI around the conditional actions... I'll be shooting for something akin to the Views 1.x UI for setting up conditions if possible.