Drools will be at JavaOne where I'll be co-presenting with Adam Mollenkopf from Fedex. Here is the email I just got from the JavaOne organisers.
Congratulations! Your submission entitled " Applying Complex Event Processing (CEP) with a Stateful Rules Engine for Real-Time Intelligence " was so compelling that the 2009 JavaOne Conference[sm] Program Committee has accepted your proposal to participate at the upcoming 2009 JavaOne conference in San Francisco, California, June 2 - 5, 2009. As an accepted speaker, you will receive a full complimentary pass to the Conference, allowing you access to all technical sessions, BOFs, Hands-On Labs and the Pavilion.