As a Glass Explorer, I'm always excited to see new apps, especially if they improve Glass' user experience. Developer Matthew Pierce delivered one such app recently, making Glass Master Control available to the public via Dropbox.
Essentially, Master Control allows users to change Glass settings in a new, more fine-grained way. It controls volume, brightness, and radios (Wi-Fi, Bluetooth, and AutoSync). Until now, Glass hasn't had manual brightness controls, and volume control was buried in a settings card at the very left end of the timeline.