Maybe the question should be can you tell the difference?
Hey that's not a bad shout, they're not too commonly used yet, but they can offer read/write speeds about double SATA III SSDs. The only ones I've heard of are OCZ Revodrives, and Asus RAIDR drives. I think they're still not well enough established for me to get one, but I'm looking forward to them becoming more mainstream in the future.
Hmmmmmm the things I could say now!!!