Just to make sure that everyone who reads this is on the same page, the kernel source code that was posted is not the full source code that comes with the relevant and necessary binaries which would be required if one were to churn out their very own custom ROM for the Moto X. The kernel source code does, however, carry enough with it so that those who are equipped with the relevant technical know how will still be able to tinker with it, creating some very nice uses for modders, including churning out their own custom kernels that can subsequently be used to overclock the Moto X or perhaps even make its power efficiency levels increase.