private instant messenger service

We want to have an instant message client on our site but we just want our own private messenger that doesn't communicate with AIM, twitter, etc. So basically something akin to google talk but that users can only use to talk with on our site. Any one have a good plugin or gem to help us out? We can't use juggernaut because Heroku doesn't like (very) long running processes. Thanks, ArcherF

Unless you are polling you probably need a long running process. You might be able to do long polling as a rails metal thing, but I still thing you need some thing coordinating when the long polling requests should complete.

Fred