Campfire is a web-based group chat tool that lets you set up password-protected chat rooms in just seconds. Invite a client, colleague, or vendor to chat, collaborate, and make decisions. Link to a room on your intranet for internal communications.
Campfire for the iPhone
Now you can collaborate on-the-go with the official Campfire app for the iPhone. It features a streamlined user interface, live image previews right within the chat room, inline viewing of popular file formats (Word, Excel, Powerpoint), inline YouTube viewing, access to all your Campfire rooms, and full SSL support.
Better than IM
Instant messaging is great for one-on-one chats, but it’s not ideal for groups of three or more. Further, if you are on AIM and your co-worker is on MSN you can’t chat. Campfire is network-agnostic and optimized for teams and groups.