The 2008 SELinux Developer Summit CFP is now closed.
As suspected, most of the proposals arrived at the last possible moment. It looks like we have more proposals than can reasonably fit in one day, so the organizing team now has the interesting task of squeezing as much in as possible without overloading the schedule. This is going to be very difficult, as pretty much all of the submissions are of excellent quality.
In any case, we should have the schedule finalized and published within a week or so.