Kenneth Hui is a Technology Evangelist with Rackspace. His passion is to help IT deliver value to their customers through collaboration, automation, and cloud computing. Ken blogs about cloud computing, OpenStack, and VMware at http://cloudarchitectmusings.com and at http://www.rackspace.com./blog/author/kenneth-hui. He also speaks regularly at conferences and user group meetups. You can follow Ken on Twitter @hui_kenneth.