Motorola certainly seems to be stepping up their game with their devices lately. They have put out the Kernel sources for the 4.3 version for the Moto G along with the 4.4 Kernel source for the Moto X. We expect the 4.4.2 kernel source for the Moto G to be out shortly too. They have taken the Moto X and got the real wood customization going. They have also taken a number of Motorla (both X and G) specific apps and moved them to the Play Store to keep them updated quicker and people happier.
Feel free to read up on the release notes or check up on the Motorola Blog for other great little notes.
Source: Motorola
via Android Police