This video shows you how to build a Play Framework application with Scala and then deploy it on the cloud with Heroku.
Video source: http://www.jamesward.com/2011/10/25/video-play-framework-scala-apps-on-the-cloud
Tutorial linked to this video: http://www.jamesward.com/2011/10/19/running-play-framework-scala-apps-on-heroku