A few things that I liked or wondered about:
1. When Mr. Hockney first began making these little works of art, he emailed them to about two dozen friends in the morning after they were finished. (Imagine being on the email shortlist of David Hockney? And what happens after you get one of these digital paintings . . . should you save it forever? Wouldn't you feel just awful if you accidentally or on purpose deleted it?)
4. The 20 iPods and 20 iPads in the exhibit were on 24 hours a day, and occasionally Hockney would email a new painting to one of the devices, swapping out images.
5. . A quote from this article on the BBC site (which includes a video of Hockney talking about the show) -
"Drawing is rather like playing chess:
your mind races ahead of the moves that you eventually make."