New icon. Improve the overall design and animations - cleaner, smoother. Attention to detail.
Spend time perfecting what's already there, making it beautiful, and work really well. Airmail doesn't need any more major "features" as such, what does need to happen is refining what's there.
Michael Muratovic commented
Maybe add a dark and a light theme.
i agree with that, same with the ios version. work a bit on the colors and the details.
I definitely agree. I would like to see the full screen new message window act like mail.app's does as well.
Agreed. The icon is just plain ugly in my dock.
Agreed. I want a fast Sparrow replacement. This is close, but there's too much cruft going on.
I agree. The app needs some polish. Especially the nav bar on the left.