NC State Library just released an iPhone app that displays historic photographs based on your location on campus.
“The system, called WolfWalk, alerts pedestrians to information about nearby buildings and shows them hundreds of archival photos. One of the oldest is an 1890 shot that depicts the first freshman class, when the institution was called the North Carolina College of Agriculture and Mechanical Arts.”
What a fantastic mash-up of old and new. Read more on The Chronicle of Higher Education.