Years ago, Dave Patterson remarked that most server innovations were coming from the mobile device world. He’s right. Commodity system innovation is driven by volume and nowhere is there more volume than in the mobile device world. The power management techniques applied fairly successfully over the last 5 years had their genesis in the mobile world. And, as processor power efficiency improves, memory is on track to become the biggest power consumer in the data center. I expect the ideas to rein in memory power consumption will again come from the mobile device world. Just as Eskimo’s are reported (apparently incorrectly) to have 7 words for snow, mobile memory systems have a large array of low power states with subtly different power dissipations and recovery times. I expect the same techniques will arrive fairly quickly to the server world.