Hm, interesting idea. I get what you're going for - inbox as to-do list, sorted appropriately. However, there are a lot of things that make inbox inadequate as

Hm, interesting idea. I get what you're going for - inbox as to-do list, sorted appropriately. However, there are a lot of things that make inbox inadequate as a to-do list. The thing that scares me about your idea is the special syntax; people sending me email are very unlikely to want to learn a special syntax. Mailboxapp had a "reorder inbox manually" feature at one point, which seemed like a simpler way to achieve something similar. Have you considered whether that's suitable? To comment on the overall vision: Recently I've been having to-do problems, and looking for a new answer, but I'm very confident that email integration is NOT the solution - for me, anyway. Most emails shouldn't be treated as todo items, they should be treated as distractions to ignore. So I would not be inclined to use a product which increased the primacy of email generated todos. Because of my experience I fear that the world is moving away from the direction of your vision.