A long time ago, I wrote an article that got posted to Slashdot about the benefits of high-speed Non Volatile RAM systems. There is definitely a spot for these devices in the memory hierarchy. Once these start showing up, I expect OS developers to wake up to this resource and start doing interesting things with it.
Today I saw this announcement from a prominent Taiwanese motherboard manufacturer. At $80, I expect to buy one of these at NewEgg in a few months! Cool!