I’m a bit late on this one, but when I read about this on holiday - http://www.wired.co.uk/news/archive/2010-11/04/david-cameron-silicon-roundabout – I thought I was dreaming. Silicon roundabout has apparently become mainstream, but this is very, very old news (even in real, i.e. not-internet, time).
I went to my first Old Street rooftop digital / web collective launch party in 1999 – Hoxton Square was the place during the original dotcom bubble. Lastminute.com was headquartered down the road in Farringdon, I went to an interview at Gorrilla Park Ventures in a converted warehouse near Spitalfields – the idea that the tech community has suddenly converged on the strip running from Farringdon through Old Street to Shoreditch is pure marketing fluff.
Perhaps we’re just waking up after the 10-year hangover.