This mail application is everything Mail.app isn't and that is it's good. Bleedin' good. I can't imagine why I haven't heard or read more about it. Probably because it's still beta (but then mail is alpha in comparison).

The user interface features are brilliant I particularly like Search by contact. I've only dipped my toe into this e-mail (and Newsreader and RSS) and the temperature is warm.

Seems like the Dev's are very hot on improving it with amazingly regular updates and fixes.

One to watch...SERIOUSLY.