For those of you that haven't read it yet - Joomla 1.6 beta1 is out. I don't advise you to use it on production sites, but you can always test it out and perhaps help with moving forward.
I was trying to port compojoomComment 4.1.2 to joomla 1.6 for the last couple of days and I finally managed to post few comments on the new joomla :).
The main problems are coming from the new installer and the language file changes, but I'm confident that we will get compojoomComment for j1.6 in couple of days(for our subscribers of course!). Stay tuned ;)