Duke Digital Collections iPhone App

I am not sure if this is an oddity or a glimpse of the future, but Duke Digital Collections has developed what I believe is the first iPhone app for a digital archive. The app is really nicely designed and takes advantage of many of the iPhone's capabilities. Here is the demo they put up on YouTube:

And yet--I can't see using my iPhone to do historical research. What do you think, dear readers? Is this a very impressive novelty or something more?

[Hat tip to the frequently valuable Duke Digital Collections Blog--a nice example of an institutional blog.]