Yes, the detail is a bit scant on this I'm afraid. I was lucky enough to attend the London Geek Dinner where they presented and asked question in greater depth

Yes, the detail is a bit scant on this I'm afraid. I was lucky enough to attend the London Geek Dinner where they presented and asked question in greater depth about how they scale and why they made their decisions. As an aside, the head of iPlayer was CTO of Kazaa which I find an amusing turn of events