Wilburforce - 5:57 pm on Mar 5, 2013 (gmt 0)
Not that I know of.
Me neither (and I always have), but if anyone else knows of anything I would obviously like to hear about it.
There are a couple of operational issues, one being that you have to give the absolute ref of the css file in the error page if you want links to mysite.com/ican'tspellthis/page.html to get the css, and the other being that most automatic link checkers don't find internal link errors.
On the plus side, you don't get 404s