Platform-As-A-Service hosting platforms like Heroku are really starting to shine. Today, Heroku announced an experimental feature that is really exciting to me - Pipelines. With this, you can run your entire lengthy build process on a staging app, verify that everything is working, and then push your already-built app (called a slug by Heroku) to your production servers.
I'm really excited by stuff like this. These are features that are definitely starting to draw me away from managing my own servers.