Well, we definitely need something to replace hard drives, as they're really bottlenecking the systems out there today. SSDs don't seem to be the panacea, either, so maybe these nano-dealios will be...

"Traditionally, each cell holds one bit of information. However, instead of storing simply a 0 or a 1, that cell could hold a 00 or a 01. Kozicki said the ability to double capacity that way -- without increasing the number of cells -- has already been proven. Now researchers are working to see how many pieces of data can be held by a single cell."