Kris Amico has launched www.onideveloper.org with this to say:

At the moment, there is only a club and mailing list, but I plan to use it as a place to gather technical information and tools, as well as provide services such as source control for open projects, site hosting, and directory services so that people can find each other and work together.

Sounds like this could become a great resource those who wish to extend the future of Oni. With the aid of some editors *ahem* and sites like Kris', Oni mods will likely become a reality.