If you have not already heard about Cloud Foundry, it is a recently hot and upcoming Open Platform as a Service project that allows for easy application deployment and scaling. The project is sponsored by VMware and has a hosted solution, which is currently in beta testing, found at cloudfoundry.com. Thanks to AppFog, PHP support was recently added to Cloud Foundry. With this additional support, Cloud Foundry is truly becoming a well rounded Platform which can support a NoOps approach to application deployment.

It's been a long time since the model of Software As A Service (SaaS) hit the scene and you'll hear many split opinions on it based on business philosophy, personal experience of successes/failures. When looking at this subject you need a particular pair of lenses for it to make sense. I'm including a basic guideline of when Unleashed Technologies, LLC thinks software as a service makes sense and when it doesn't.