Announcing the release of KitKat Open Source Software for Moto X:
https://sourceforge.net/projects/motox.motorola/files/13.11.1Q2.X-69-3/
https://sourceforge.net/projects/motox.motorola/files/13.11.3Q2.X-69-3-8/
https://sourceforge.net/projects/motox.motorola/files/13.11.3Q2.X-69-3-2/
Moto X OSS sources based on JB4.2.2 for Republic Wireless has been posted here: https://sourceforge.net/projects/motox.motorola/files/13.9.0Q2.X-178-RW-17/
Moto X OSS sources based on JB4.2.2 for ACG-LTE has been posted here: https://sourceforge.net/projects/motox.motorola/files/13.9.0Q2.X-191-TA-3/
You can find the sources here: https://sourceforge.net/projects/motox.motorola/files/