Piece by Jeff Goldman in The Feature about how “zoomable user interfaces” could be in the cellphone’s future:
In terms of memory capacity, mobile phones just keep getting better, but screen size is a problem. Smartphones are now able to store everything from photos to documents: finding your friend’s phone number by scrolling through an alphabetical list is one thing, but how will you find a file or photo among hundreds when all you have to help you is a two-inch screen? Zoomable user interfaces, or ZUIs, may be the answer. Imagine being able to view all of the files on your phone by simply zooming out to see an overview of all data, and then zooming in to pick the item you want. That’s a much more attractive proposition than scrolling through a hundred-item list.