Most of us deal with a computer every single day. Some of us enjoy the experience more than others but we all share one common need.
Visual real estate.
In other words, we have one or more monitors and using those we can look at a given number of things. After a certain number, depending on your setup, you hit a point of diminishing returns. In other words, if you open too many windows, you'll clutter up your screen(s) to the point that they're unreadable.
Well, this could fix that. It could also have fascinating implications for the storage and retrieval of data. Think of it as microfilm 2.0.