This technology has been around for a while. Lockheed Martin built a 4MB NRAM back in 2008, and sent it up with a memory tester on a Space Shuttle flight in 2009.[2] That was done in conjunction with Nantero; they had an arrangement for government products. The technology is inherently rad-hard, so it's useful for space operations.
This technology has been two years from volume production since 2008.[3] It's not clear why it hasn't reached production yet. It clearly works. It may just cost too much.
[1] http://nantero.com/nantero-closes-30m-series-e-round-its-nex... [2] http://www.nsti.org/events/NNI/sld/pdf/65.pdf [3] http://spectrum.ieee.org/tech-talk/semiconductors/devices/na...
If you asked me what the write cycle limitation of the registers in my haswell chip was, I'd shrug and say effectively unlimited. Which isn't far off what they said.
I have a hard time believing the durability presented (especially with remarks on how it might as well be an infinite number) for a process that involves movement and contact points.
So, if it's been tested continually for 10 years, why are the fabrication technologies behind? This sounds like marketing for vapor ware with as much hype shoved between the specs.
Since the contact points are CNTs I would believe it. Only diamond has a stronger lattice binding those carbon atoms.
