Interesting study - I didn't know there was such a thing.

That study goes along with my personal idea of having a user interface that incorporates sound, visual, and physical feedback as information sources.

A particular note represents a certain message, moving a display window past the edge of the screen causes a physical "bump" when it hits the edge, color-coded error message severity, etc.

Incorporate the vibration interface into a pair of gloves and combine it with this interface:

http://www.fastcompany.com/magazine/112/open_features-canttouchthis.html

and you've got something that allows you to "feel" moving stuff around among other things.