You know what I really want for collaborating on projects and such right now? Google Wave (but obviously executed better than it was back in 2009). I want the i

You know what I really want for collaborating on projects and such right now? Google Wave (but obviously executed better than it was back in 2009). I want the integration of synchronous and asynchronous in one application - because I do actually need both Slack-style and email-style communication for different things.