There has been some work on integrating Wave with email (initially as a way of using Wave as some mailing-list replacement tool). See WAVE-70 (https://issues.ap

There has been some work on integrating Wave with email (initially as a way of using Wave as some mailing-list replacement tool). See WAVE-70 (https://issues.apache.org/jira/browse/WAVE-70 https://issues.apache.org/jira/browse/WAVE-70). Chat integration is arguably simpler - and Wave already understands XMPP (for federation), so it would be possibly to map Jabber -> Wave (say). How you would want to map from Wave -> Jabber is more complicated (as any blip at any point in the tree, can be edited at any time, by anybody)...