The 10th will feature an IgniteSpatial lightning talk session with the actual unconference happening on the 11th. I had a great time at WhereCampDC back in May and I know Florida has a very active spatial community that deals with a diverse problem set. I think this has the potential to very a very good event.
To register for IgniteSpatial: http://wherecamptbignite-auto.eventbrite.com/
To register for WhereCampTampaBay: http://wherecamptbunconference-auto.eventbrite.com/