As soon as sessions have been submitted we will allow voting on the sessions. Once voting is complete a mix of sessions will be selected taking into account the votes and the bias among voters (voters will be registered well in advance of most attendees and are more likely to want advanced sessions, so some sessions with a focus on the beginner user may get selected over an advanced topic with lots of votes).
Any attendee can submit a session for consideration. You will need to create an account on this site, register as an attendee, and then submit a session. We will make an announcement once the session proposal will be open.