There are several people working on different Hydranode-related things already - I know at least three people writing new plugins for Hydranode, one person writing an interface and one doing black magic. All this leads me to believe that a central communication medium is neccesery to co-ordinate the efforts.
Experience has shown that neither forums, nor IRC are viable communication platforms. Forums tend to fall more towards user-support area, and IRC, as a real-time communication medium, is simply too time-consuming (and many people don't like IRC at all).
So here's the question - what would be the preferred central, developer-oriented communication medium for discussion? Maybe I'm wrong and people/devs do prefer forums, but judging from other projects, it seems mailing-lists are more favoured. Another alternative would be newsgroup, which has the advantage of better threading support...
What say you?
Madcat.