ControlTier has supported the concept of continuous deployment for years and it's great that the concept is becoming increasingly main stream.
In ControlTier, the end-to-end build and deployment process is defined via the Updater "BuildAndUpdate" workflow that orchestrates the Builder's Build and the Site's Update workflows. You can read about the basics on our Wiki here: Continuous_deployment
There's also a practical hands on example using tomcat.
Of course you can also support continuous deployment by having your favorite continuous integration server interface with ControlTier after the build is completed.