Mr. Franklin is standing in front of a 40-foot-wide touch screen that displays greeting-card-size images of all 3,000 objects on display in the museum. When a visitor touches an image, the screen enlarges it, arranges itself near similarly themed objects, and offers information like the location of the actual piece. And by touching a “heart” icon in the corner of the image, the visitor can transfer it from the wall to an iPad (one brought from home or rented at the museum for $5 a day), creating a personal list of favorites.
From the list of favorites, the user can devise a personalized tour, which can be shared with other users.
See the full story here; http://www.nytimes.com/2013/03/21/arts/artsspecial/at-cleveland-museum-of-art-the-ipad-enhances.html?_r=0