JRun URL Rewriting
I was working on my next installment of "So you want to create a CFWheels application?" and was able to easily get URL Rewriting on JRun which I thought was previously not available.
I used the Url Rewrite Filter mentioned by Matt Woodward in his "Open BlueDragon + Railo + ColdFusion on Tomcat" blog entry. It was very simple to setup since the instructions are well written and seemed straightfoward for the URL Rewrite Filter. I was also able to copy some Apache rewriting rules already setup in CFWheels.