The official add-ons family now has a new item, we released the new add-on Forum for Combu to allow your users to participate in Forum discussions or Q&A, just like they would do on a web site but right on your awesome game/app and with the ease of use way to code as any other Combu product!
You can completely customize the forum in the web admin console through a granular system of permissions sets. Click here for more information.
This is pretty awesome!