What is the market for this app? Are you intending to replace the default client?
The interface looks very nice (gotta love cocoa), but what about multiple addresses?
I didn't code this. I designed it in Photoshop. Yes, this is intended for the default client, but it is far from having all of the features and things necessary for something real. Some people like the plain and boring layout the app has at the moment.
I'm aware about the multiple addresses, this will be fixed.