As you would expect from Android 4.4, the update brings the massively improved Dialer (one of our favorite features), as well as the more powerful photo editing tools, emojis, the new Hangouts app that integrates SMS, and UI tweaks. But, on the side of Moto X specific enhancements, the update does have more fixes for the camera. There is no word on image quality fixes, but the camera app on the Moto X will get new options to simply drag your finger on screen to change the focus or exposure when taking a picture.
This is an incredibly fast turnaround for Motorola given that the Nexus 4 and Google Edition devices haven't even gotten the Android 4.4 update yet. Motorola says that the update is rolling out "in phases" starting today, but hasn't said how long the total process will take.