Shortmail — a new kind of mail

It sounds interesting but I never looked at email and thought that there is a problem with people writing to much, that attachments are a problem or that I don't need folders to organize my email. Also, I use Gmail and its spam detection is superb: nothing gets passed it.<p>I'm curious to know if and how the product team market tested the idea.

A walk through or screen shots of the product on the home page, would help. I wouldn't give my twitter handle to an app that I have no clue of what it does.

Will there be integration with current email servers? What happens if someone sends a "long" email or attachment from their gmail address to shortmail?