Chris Kemp, NASA’s former CTO and one of the founding fathers of OpenStack, gathered a lot of headlines yesterday with the launch of his new venture. Not to be confused with Nimbula or the NASA cloud that shares its name, Nebula will offer a turnkey hardware appliance running the OpenStack code; just plug it in and go. The appliance will manage commodity servers in a private cloud, with the servers initially either coming from Dell, or being built following the designs open sourced by Facebook’s Open Compute effort. Derrick Harris, Dean Takahashi and Alex Howard are amongst those offering more analysis. And elsewhere in OpenStack-land, news that Hewlett Packard has signed up to the project. Nebula is potentially big news, but HP’s announcement deserved far more attention than it got.