For those in the US the annual MySQL UC is taking place again in April. For those in Europe we have dedicated room for MySQL and MySQL related products/variants/branches at FOSDEM 2010 being held in Brussels, Belgium on 6-7 Feb.
This conference will feature a full day of talks with a format of 20 minutes presentation and 5 minutes Q&A. More information about submissions can be found at Call for Papers for “MySQL and Friends” Developer Room at FOSDEM 2010 now open!
Other references:
Updated
Wednesday January 6th is the last date for submissions. Extension for FOSDEM MySQL