Thanks for the kind words. It's just about break even now, the targeted advertising is starting to work very well. I want to get the advertising 100% before I introduce any paid options.
Given the price that some of the competition charge to host webchat there is plenty of room there I think.
I'd be interested in what long time twitter users think of this - it's obviously not the usual twitter UI design, but it works quite well IMHO. (It updates every 5 minutes)
Does it run at a profit yet?