Hmm, I've been waiting for this technology to mature as well. I would ideally like a fast solid state dirve for my OS and main programs.
Flash really wasn't intended for this use, so I'm hoping another contender will take its place for a more appropriate implementation. Battery backed RAM may be OK. Also, some kind of redundancy would be good.
I need to buy a new computer this year, and am putting it off until I feel the tech is tempting enough.
My current computer is actually so old that the hard disk drives are failing.
Also, there are true RAM drives available now (de ja vu?). Populate a PCIe card with high speed RAM, and use for Windows cache. They appear as hard drives to the machine.
