wst3
At the risk of being a kill-joy they've made a huge change this year, the exhibit floor closes Friday evening, Saturday is reserved for papers and other sessions. Not sure why they did this, I can't imagine how it will increase floor traffic, but hey, I don't run trade shows for a living, so what do I know.
the exhibit floor must be lacking visitors recently, so getting them all on the one day (increasing traffic for that day) rather than spread across 2 makes sense