"uses magnetic charges rather than electric charge"
So they succeeded in separating out magnetic monopoles on a commercial scale?
I rather doubt it.
OTOH if this delivers 10x the speed....
A group of over 20 Japanese and US chip companies are joining forces to develop a way to mass produce new low power memory chips that operate ten times faster than DRAM. Firms including Micron Technology – the world’s number two DRAM producer – Renesas, Hitachi and Tokyo Electron will send experts to Tohoku university to begin …
The Everspin website http://www.everspin.com/technology.php says that reads and writes are the same at 35ns.
Compared to modern RAM, that doesn't seem particularly fast to me, but apparently IBM's experimental versions go down to 2ns.
Looking for information on MRAM, I found that Everson had to exert themselves, by developing ST-MRAM, to get something that would write fast enough to be used as a DDR3 part. It seems MRAM writes faster than Flash, but not yet as fast as DRAM. Still, that could be old news, and the experimental parts the other companies are working with are ten times as fast as DRAM, but now I'm wondering.