Take a look at the video of Bush being interviewed on CNBC and saying that "one of the things I've used on the Google is to pull up maps." (Syria? Iran? Cheney's bunker?)
Sure, it's good for a chortle and a little unfair; we don't really expect our presidents to be as conversant with, say, the most popular search engine in the world as those of us without huge support staffs. On the other hand, like Bush Sr.'s supposed (and discounted) befuddlement at supermarket scanning technology, it is a telling reminder of the bubble in which our leaders live.