Spring '83 is my suggestion. Spring ‘83 rejects the timeline and the inbox, aspiring instead to the logic of newspaper classifieds - read this and tell me what you think.

Email today is now less a communications medium than a communications compile target. It’s a clearinghouse technology. It’s where conversations-of-record go, where identity verification happens, where service alerts accumulate, and perhaps most importantly for publishers, where push-delivered longform content goes by default. It is distributed and... See more

The email<>todo part of this workflow actually works reasonably well. Most of today’s email clients are built around the concept of Inbox Zero, which effectively turns your email inbox into a todo list with public write access.