Apparently GreenPepper’s Accept launched at Agile 2006 as an acceptance testing framework built into a wiki. The idea is much like Fit/Fitnesse, with at least a few differences given that it’s based upon running in Confluence, and it has an open source version and a pay version. You can get a quick look at it in their demo sandbox.
Right now they promise that:
After using FIT for a while, we began to have ideas on how to extend its vision and reach. We looked at the code and we felt that doing a cleanroom implementation would be better.
I’m not sure what those ideas are right now, but it probably doesn’t hurt to have some more options in the acceptance testing tools space.