After a discussion in chat where some of us were discussing the proposed new chat engine, I thought I'd start a thread for people who test it out can leave feedback.
The proposed engine that DocJohn is thinking of switching too can be found here
Chat Room - Join a Free Chat Room or Get Your Own Free Chat Room From ParaChat - it has three interfaces to test, Java, Flash, or html.
The single advantage of switching would be that mobiles can use the html interface, although when I tried it personally with my blackberry although it worked, I didn't personally find it userfriendly.
It does however have the choice for normal users to either use Java to chat of Flash - or to use the mobile HTML version.