Vanilla CKEditor 0.1
After I found it I was very impressed with Vanilla, but I wasn't satisfied with current editors, so after studying some code of the other custom editors I built my own using CKEditor - the same editor used with a few popular commercial boards.
I'm sorry if it's a bit rough around the edges - I only got into Vanilla today. If I end up using Vanilla as my main forum software I'll probably keep it updated and add more features to it. Right now it just uses the standard CKEditor install without customization options.