My feeling was that ultimately you don't want Pearson coming into Edubloggercon because you don't need to make it easier for them to co-opt the "movement." But as I rolled the (future) lawn this evening, I realized I couldn't really put my finger on what could be co-opted that hadn't in fact simply been co-opted by the attendees, based on something that itself is a third-rate recapitulation of what once had been a living idea.
Put another way, Pearson doesn't really need to listen in on what a bunch of teachers think about Clay Shirky's book. They can afford to just hire Clay Shirky. And they should.