In less than a year flash memory will meet and probably exceed even SATA-II bandwidth. Most OEMs will figure out how to parallelize flash like the FusionIO drive and flash-based SSDs will have completely overtaken the market, replacing mechanical hard drives in workstations and laptops.

Magnetic hard drives will be used exclusively for backups, just as tape is relegated to those duties now. You will probably see one, maybe 2 drives in RAID 1 included for backups in systems because people will have much greater expectations for data availability and reliabililty.

Call me Nostradumbus, but I see this only as a novelty solution. The inherent problems of using DRAM to store data with any kind of longevity are just too great and I doubt this device will solve that problem.

Benchmark queen? Check.

Interesting and fun to mess with? Check.

Useful and valuable? Fail.