Flash Memory Summit 2014 - ST-MRAM is one of the front-runners to power the future of the datacenter. Everspin is the only company in the world producing Spin-Torque MRAM, and at the Flash Memory Summit they announced that they are ramping their 64Mb DDR3 Spin-Torque MRAM. This is the world's first commercially viable product that has been released utilizing ST-MRAM.
ST-MRAM provides RAM-like performance, but with the persistence of a non-volatile memory technology. ST-MRAM will initially be used as a complimentary technology to other storage technologies until it gains in density. Everspin actually has working MRAM in production already, products in the field, and a whopping 600 active patents in their portfolio.