Thanks to Mike's reminder, the number of participants has increased by 30-50% in the last few days. There is still room for more. Today (European time) we even managed to stay remarkably on-topic for over 3,5 hours. :-D
By the way, for those of you with (non-vintage) Macs, the Adium 1.4 beta also includes native IRC support, which seems to work nicely so far (at least for me) . For Adium 1.3, you'll still need an add-on.
Depends on the time of day you log on, I found a lot of our euro users were logged in but inactive by the time I showed up but certainly had some great conversations with the few who were idling till the window starting flashing