TweetTracker is what I hope to be the ultimate project/issue tracker.
* Twitter like functionality that ties into the issues.
* XMPP support so you can have notifications sent to Jabber.
* Mail support, including emailing issues
* Public/private registrations
* LDAP support
* Full I18N support
* SCM integration using a REST API.
These details are provided for information only. No information here is legal advice and should not be used as such.