It's a free event, similar to a System z Technical University. It takes 3 days and it's organized around 10 tracks :
Track 1 - System Z For ArchitectsAnd there are definitely some renowned international speakers. You can find all info over here.
Track 2 - System Z And Z/Os Update
Track 3 - Getting Started With Linux On System Z
Track 4 - Linux On System Z - Advanced
Track 5 - Information And Data Management On System Z
Track 6 - Enterprise Modernization And New Trends For Development
Track 7 - Z/Os Batch Modernization
Track 8 - Implementing The Foundation For Business Continuum On System Z
Track 9 - Managing And Monitoring Of System Z Workloads
Track 10 - System Z For Managers And Executives
So you have two chances to attend this event : Amsterdam March 9-11, 2010 or Brussels September 8-10, 2010. I'll definitely come back with more info on the Brussels event in due time.