I found this on the Oracle OOW2009 blog: http://blogs.oracle.com/oracleopenworld/2009/05/come_fly_with_me.html#
I hope that the possibility to fly with Sean Tucker also applies to presenters - who register in a different way than the normal conference attendee.
BTW: I just showed the YouTube movie of Sean Tucker to my wife. She just said: "All Oracle people are crazy!". I just replied: "Yes - they are! And this is a good thing ;-) ".