First properly developed a few years ago, Memristors have a really interesting property that as you send a current through them it changes the resistance as a lingering effect. And since it's pretty much just a special type of wire, and requires no transistors to work or capacitors like DRAM, it ends up being really really really tiny and taking very very little power. They are set now to replace SSD, and hopefully end up replacing a lot of computer memory including the memory on CPUs. With this technology it, you could significantly reduce the amount of electricity a computer needs. And, actually stop the computer without losing the computer's current state. You could turn it off, and all the data would stay where it currently is and turning it back on wouldn't change anything.
But, even without utilizing those properties yet, you still have faster and cheaper and better. Even if you don't yet need the non-volatile abilities for things which have traditionally been volatile. Also interesting technology in the pipeline (not at HP that I know of), non-volatile displays. It turns out there's more than a few ways to replace the current LCD displays which use refreshing liquid crystals with backlighting to technology that simply reflects different colors. Like a paper that changes what is printed on it. Then what is displayed on the screen stays on the screen, and if you take your device into the sunlight, it gets even more clear rather than bleaching out.
There's a lot of interesting technology out there, that's coming to fruition.