Old Holborn and Henry North London have posted some pics already (I spent longer in the pub) of today's NUJ event covered by Comrade Beeb amongst others.
Here are some of mine.
Or subtitled, Man walks across London 2012 100 metres track
A scrum of photographers, earlier
OH drew quite a reaction
Justice4Jean delivered a message
"Please stay on the pavement"
I think elf 'n' safety want a word with you, sunshine
Mark Thomas has his say
This guy is really asking for trouble
OH doing his bit for the tourism industry ... signing autographs for a Spanish couple!
And an unrelated WTF photo ...
What was this superb bike doing in Home Office heartland?