There is a _new_ type of memory being developed called MRAM, which uses
magnetic fields to store data.
An interesting quote from the article (to bring it on-topic):
"Magnetic fields have been used to store data since time immemorial,"
he joked. "We were using it in the early 1960s and 1950s."
The article can be found at:
http://zdnet.com.com/2100-1103_2-1014865.html
Cheers,
Bryan