Boing Boing's Cory Doctorow in the Guardian on the pop art exhibition at London's National Portrait Gallery:
Does this show – paid for with public money, with some works that are themselves owned by public institutions – seek to inspire us to become 21st century pop artists, armed with cameraphones, websites and mixers, or is it supposed to inform us that our chance has passed and we'd best settle for a life as information serfs who can't even make free use of what our eyes see and our ears hear?
Perhaps, just perhaps, this is actually a Dadaist show masquerading as a pop art show. Perhaps the point is to titillate us with the delicious irony of celebrating copyright infringement while simultaneously taking the view that even the "No Photography" sign is a form of property not to be reproduced without the permission that can never be had.