So, after this flaming endorsement I just had to install mailbox.app. I gave it a whirl and... well, it's nice. But can you give an example of the parts that

So, after this flaming endorsement I just had to install mailbox.app. I gave it a whirl and... well, it's nice. But can you give an example of the parts that you deem "unclone-able"? That seems a pretty wild claim. It's not made of pixie dust. And I'm frankly a little underwhelmed. It's certainly nice, but (to me) not nearly as earth shattering as you make it sound. I'll give you that assembling a team to maintain such a standard (and extend it) is non-trivial. But do you seriously think iOS top-talent wouldn't jump when dropbox puts, say, one million dollars per nose on the table? Get a team of five and have them dedicate their life to making the best mail-client ever. That'll be $5 million dollars, not $100MM. This whole prospective is of course a little surreal. But so is paying a hundred million dollars for a mobile mail client...