I. Overview The 2013 OpenStack summit has come to a close, and Docker was out in force. We sent a full 16% of the company there! (Well, three people—Ben Golub, Sam Alba, and Nick Stinemates). The conference itself was incredible—over 3,000 people from 58 countries were there, over 2/3 of whom had never attended a summit before. Overall, the pace of OpenStack adoption and growth has been very impressive. (For a quick overview on OpenStack, see the keynote, or Randy Bias and Scott Sanchez’s latest “State of the Stack” talk.) While a Docker driver for OpenStack Nova had already been accepted into OpenStack for the Havana release, it became clear during the conference that Docker and containers had impacts and implications far beyond the Nova driver.