Good points, but working for museums myself seeing a project like this is really hopeful. Let´s wait and see how it develops. The search function is also really bad. What do you think of a site like Ted.com? They have all the social options, but I am not sure how many people actually respond there. Or is it difficult to compare the two? Keeping it ´clean´ could also be a strategic move, so not just 2.0 savy people end up using the player. For a lot of people, even young people, interaction is still not common, and could even be a nuisance. I bet they have their reasons to leave it out.

I hope you had a good lunch.