Shanghai has a 4G wireless infrastructure. Why not put it to use? Wouldn't it be easier -- considering that (I read) 50,000 visitors will mob the US Pavilion each day for six months -- to have people use their own cellphones as interactive devices rather than give out and collect expensive handhelds that are sure to be damaged and lost?
Since we're into telling stories, what's the ultimate takeaway for the Chinese and world visitors? What will they remember most about the United States? I didn't get that. Thank you.