Got a feature request to add Notification Center support. I had skipped it assuming it required being sold through the App Store but turns out I was wrong. This release will use Notification center if available and fall back to Growl if not. You can get the new beta here or if you are already running the 1.3.0 you can simply choose “Check for updates” from ControlPlane’s menu.
This project is in need of a new maintainer. If you are interested in this let me know via twitter @dustinrue