Foul was created in 2004 and development on it has been pretty slow. That’s not necessarily a bad thing – it works and it works well. It’s a lightweight script that serves a very niche purpose.
That said, I was searching for some documentation on one of Foul’s features and came across a page titled “Foul 2.0 Documentation” that gave a 404 error. I was able to view a cached version of the page on Google. Foul 2.0 has never even been announced, much less released. The documentation was originally indexed by Google in July, 2008 so it’s fairly new. It must have been taken down shortly after due to being accidentally indexed.
See the screenshot to the right (click for a full-size image) or check out the link. I also archived a version of the page, for historical purposes. I’ve put a nofollow on the link so it won’t get counted as dupe content.