Stefan is also one of the main speakers, along with Primoz Gabrijelcic, while Paolo Rossi will help hosting the event. You can read more at the conference web site:
I plan attending both days of the conference, as this is close enough home for me to drive there. Regular price tickets can be bought until March 31st (it gets more expensive later). If you are using Spring4D or plan using it, and live in Europe, this conference offers a unique opportunity — and Bergamo is a good hub for low-cost flights.
See you there.