OpenID software creator Janrain is launching a new iPhone SDK today, called Janrain Engage, which allows an app developer’s visitors to sign-in to the app with their existing accounts on Facebook, Google, Twitter, Yahoo, LinkedIn or other networks and then publish their comments, purchases, reviews

Data center automation company Puppet Labs has acquired an open source project called The Marionette Collective. The project, also known as the Mcollective, is a framework to build server orchestration or parallel job execution systems. Mcollective’s primary use is to programmatically execute actions