Apparently, some of them have been realized.
An article on New York Times website states:
Among the crucial questions that occur on visits to the American Museum of Natural History: How did man get from a knuckle-dragging primate to a majestic bipedal creature? How did the mighty Tyrannosaurus rex use its tiny forelimbs to subdue its prey? And how do you get to the nearest bathroom? If you have an Apple mobile device, a new application created by the museum can help you with all of those queries.It sure will be very convenient; however, I do hope people would study the exhibit more, instead of being drawn into the tiny screen. The danger is there and real.
In a news release the museum said its American Museum of Natural History Explorer application, available free from the iTunes store, is compatible with the iPhone, iPad and iPod Touch, and connects to the institution’s wireless network to put information at visitors’ fingertips. In addition to providing a GPS and turn-by-turn walking directions to any of the exhibitions, theaters, shops, restaurants and bathrooms in the building, the application also provides additional details on more than 140 displays (including the blue whale, of course), customizable tours, a fossil treasure hunt for the kids and connections to Facebook and Twitter.