I'm able to kinda test the new releases, but given that my site
requires a few custom developed plugins to function properly, I'm not
sure how well that would work out, unless someone is willing to help
me out with porting them to the new releases.
Regarding themes, yes, I am more then willing to be designing unique
and very high quality themes for Habari, however I would most probably
need one of the developers to assist me a bit with the coding. I'm
fully able to do everything with the CSS etc, but I don't do any work
with PHP and so I'm not at all familiar with how I would need to go
about the coding past the html/css.
Given that more or less all themes are almost identical when it comes
to the actual integration of functionality, as long as a dev could
properly explain and walk me though doing that for a theme, I'm sure
I'd be able to go on, on my own from that point.