I really liked Birchs talk. He offers some unique insights into a market most of us have no experience with, yet are trying to enter.
He's probably right in saying: if you want to be successfull, you have to be on the phone.
Back in Prague I couldn't help thinking: Damnit, this guy doesn't get it, he keeps talking about Bitcoin as if it was merely a transaction processing system, like visa or whatever. It is not, Bitcoin is a money. I can see the point of marketing Bitcoin as a payment processing system for now, but it really
is more than that, clearly.
EDIT: let me quote him:
You know, you're not the only people, that are looking to develop new payment systems and are trying to find a niche, so here we go: if you think you're going to sell bitcoin to the mass market because the general public wants an anonymous, irreversible, cryphtographically strong, pre-payed, electronic cash replacement system, I can proove to you, absolutely: they don't and you're completely wasting your time.
An electronic cash replacement system? What the heck is that? He's clearly putting bitcoin into some sort of pre-made category system for payment systems he has (I bet he had to add "cryptographically strong" for bitcoin), which bitcoin doesn't fit.
David Birch fails to see that bitcoin is money.