Integrates phpfreechat, a free, simple, fast and customizable AJAX chat into your Drupal site.
Features: chat on any node, multiple channels, moderation and sound notification. Full feature list.
The latest version adds an "away" feature to indicate when you're not at your computer.
Compatible with phpFreeChat 1.2.
If you want a particular feature or update, please consider making a contribution to pay for my time. It will happen much faster that way. I was able to port the phpFreeChat module to Drupal 6.x because someone supported the effort with $$. My PayPal address is sales-at-permutations.com. You can write to me at that address, too.