I love this, and honestly it makes me wish I had a use case for it but I know a few folks that will! (Who will be excited to get in while you're still offering flat-rate pricing, heheh) Great job!
I can see some heritage of Hey.com email here, if so, that's a great source of inspiration. You've done a really good job at making concepts that people actually use, versus forcing some generic concepts of "tickets" and "assignments" on users.
Maybe my only suggestion would be different kinds of archiving, since I think it's probably useful to mark things as Dealt With (resolved and nothing more to do) or Went Cold (original sender never replied for some period of time) for example.
I can see some heritage of Hey.com email here, if so, that's a great source of inspiration. You've done a really good job at making concepts that people actually use, versus forcing some generic concepts of "tickets" and "assignments" on users.
Maybe my only suggestion would be different kinds of archiving, since I think it's probably useful to mark things as Dealt With (resolved and nothing more to do) or Went Cold (original sender never replied for some period of time) for example.
Also I see the Trix WYSIWYG editor, rails? :)