Well done all of you. I didn't do the race as yesterday was my last long run before the Chicago Marathon, but I decided to do two laps of the Park as part of my run. The sight of 20,000 yellow shirts in one almost continous ribbon was incredible, and I kept wishing I'd brought my camera. Have to say, though, that I was surprised by the number of people at the back of the last group who clearly had no intention of running - it's called Run London, after all, the intention was to get people to do some training (running) before, and there were plenty of people who would have run it if only they could have got in. Run-walk's fine, but walk-walk is a bit naughty; there's the Playtex event if you want to walk the whole way.
Great visual event though - if the t-shirts are blue next year, I just might do it!