Cloud Foundry is an open source platform as a service (PaaS) that allows developers to build applications once and deploy them to multiple cloud environments including Amazon Web Services, VMWare vSphere, OpenStack, Microsoft Azure, and Google Compute Engine. The presentation demonstrated building a simple "Hello World" application using Go programming language and deploying it to Cloud Foundry, as well as showing how to scale the application, monitor its health, access logging data, and manage users. Resources for getting started with Cloud Foundry on Pivotal Web Services and IBM Bluemix were also provided.