For the Friday after the MySQL conference, Oracle had invited all storage engines to the traditional storage engine summit, but this was then canceled (or postponed) in the last minute. Since the engine vendors had already booked the day anyway, we agreed to sponsor the facility so the meeting could take place. In addition to those who had planned to be there, the meeting was also attended by Mikael Ronström, Jonas Oreland and Sanja Byelkin who had their flights cancelled. (Oracle was already represented by Konstantin Osipov.)
Also see http://askmonty.org/wiki/Storage_Engine_Summit_2010 for more complete notes of the summit.