I met Vipul (of Vipul's Razor) today. I guess this is the geek equivalent of a celebrity. He was a very suave shaven-headed Indian chap dressed all in black, and of course knew his stuff. I have his business card (and therefore email address *grin*).
At lunch time I left the London office and wandered around, popping first into a strange toy shop / museum. Nice to see bizarre and quaint things still exist. :)