Both companies share a common commitment to open source and both embrace the OpenStack community. With over 117 member companies the momentum behind OpenStack is truly game changing and promises to position it at the center of the next wave of computing.
This is an important announcement on several fronts – that OpenStack is seen as the platform of choice for building out the largest Public Clouds, and that Ubuntu has what it takes to power OpenStack clouds as a scalable and hardened host OS and responsive and flexible guest OS.
Ubuntu is the reference OS for OpenStack but like in any other open source project we need to earn our keep on a daily basis and having HP select us is a positive reflection of Ubuntu as a Cloud OS.
Reference: http://blog.canonical.com