There was an Emacs Conference on 30 March 2013.
See also coverage from twitter: @EmacsConf and #EmacsConf
ForwardGroup Floor 2, Centro 3 19 Mandela Street London, NW1 0DU United Kingdom
When?
30th March 2013
The date for EmacsConf: 30th March 2013. (announcement)
See also NicFerrierHelpForLondonVisitors