Medicom decided to sell some Series 9 direct at the show as a sneak preview.
From what I understand, they aren't bulk shipping them to the distributors until after the show is over, mid-July. It's sort of an "if you take the time to go see the show, you can get them early" bonus kind of thing.
So, you may see a few pop-up on eBay as a result of the show sales, but the bulk of S9 won't hit until the later half of July...