We opened up the call for speakers today with the announcement. We're planning to leave it open for 2-3 weeks. Shortly after that we'll announce the schedule.
We will also be announcing speakers as we get them confirmed throughout the following weeks. We know it's short notice, so we're trying to get the information out to people as quickly as we can.
The timing is a bit constrained because I am going to be hiking the Pacific Crest Trail from Mexico to Canada starting later in April: http://ericholscher.com/blog/2013/jan/10/walk-woods/