Some suggestions I'll throw out there:

1. The colour scheme of the wallet. It's fine on the main pages, but in, say, the Setttings menu, it looks awful. Hard to read too.
2. You might want to update the OP to say that the Mac wallet has been made, and give a link to it.
3. The wallet is minimized to the task bar when I hit the "X" icon, even if I don't have the setting to do this enabled.