http://www.overclockersclub.com/news/34340/
http://www.mit.edu/newsoffice/2013/surprising-turns-in-magnetic-thin-films-could-lead-to-better-data-storage-0618.html
There ya go. Reduces the amount of power needed to flip magnetic "bits" in magnetic storage. Anyways, just an interesting read.
I read a while back that they were thinking of making magnetic disk drives that didn't have any internal motion. Think of the same material they use for HDDs, but make a wafer out of it, and put electrical contacts on top. They flip the electrical bits. So, it's basically a mix of RAM and HDD technology. Don't know where the article is, but the density of magnetic storage, the speed of an SSD, the permanence of HDDs, etc. So awesome!
However... I think those memristors are going to be just as awesome, if they're ever released.