I already satisfied with Zeroshell features, and I really appreciate your work.
If you have some tools like SLAX, to add more functionality, also the kerbynet development tools, like SDK, to develop more features and functionality in the User Interface level, it would be great.
The other thing is centralize management using same kerbynet UI which is manage several Zeroshell box. I believe that a lot of administrators will love this feature.
From another project like m0n0wall, the central management using xml and store in the database. I believe this will need a lot of efforts. Perhaps you could add bounty forum to put the new request if you can not work on it but another people needs and want the features.
But first of all, the framework should be done quite well.