tvbcof and
passerbyThanks a lot for suggestions!
I like many of them, so I'll discuss them with the rest of the team and we'll start working right away. I like the "internal transaction" suggestion, though I'd rather avoid using either emails or long "bitcoin not-a-bank account numbers" as internal identifiers. I am considering bitcoin address of the vault itself (gox style) though I am open to other suggestions.
Also, I have a few ideas of my own that, to the best of my knowledge, aren't part of any wallet service currently done
Wallet.is team will do our best to amaze
I believe the fact you glossed over TF's issues without any defense shows his comments were dead on. You are going to collect as many coins as you can then disappear.