This is the World Wide Developer Conference, not the World Wide Consumer Gadgets Conference. This is an event first and foremost for the developers, so Apple can get them (and also the press) excited about what's coming down the pipeline in terms of developer-related OS improvements, innovations and new tools, as well as pro hardware like the Mac Pro. Events like January's Macworld and out-of-the-blue, invite-only media blitzes are where Apple drops their crazy new products for the masses.
So I don't think the Scobleizer was wrong, I just think his predictions were shooting a little early. Don't worry, y'all will get your shot at an Apple Store sleepover yet.