Yes. I would surely love to use this as an email client if it works well with my Google Apps account.

And I would definitely be willing to pay a nominal amount for a year long license or a lifetime license.

What I like about your app -

* UI

* Well thought-out panels

* Utilization of white space

What you can possibly work on -

This is one feature that is not there on GMail and I really really crave for it. Sometime I feel the need to create a note for myself for a specific email I have received. But I can't do that. It would be a great addition to the Mail App.