[citation][nom]bigpinkdragon286[/nom]To reiterate what blazorthon said, SRAM is neither cheaper nor denser. It's larger on silicon, thus more expensive, but faster, not requiring the capacitor and refresh cycles of DRAM because it's based off of flip-flop design. It is used when and where the manufacturers find it's trade-offs worthwhile. I like the sounds of what I read on the STT-MRAM, and hope it gets put into use sooner than later. I do find myself wondering which companies will get to share in the benefits of the announced research, and if we'll see the products containing it advertised as such.[/citation]
I've been reading about a few MRAM technologies for years... They haven't gotten very far. Most usage that I'm aware of is small capacity chips that are used as replacements for SRAM chips that need non-volatility. It might get somewhere thanks to this development, but I'm skeptical. Most technologies like it have yet to get anywhere despite decades of R&D. I hope to be proved wrong because it's quite an interesting and potentially very practical technology for a huge variety of usage.