As an almost exclusively Nexus device user, I have come to appreciate (and to some degree, expect) a friendly attitude towards aftermarket development and hacking from my device manufacturers. However, despite a certain OEM’s somewhat recent buyout, this isn’t always the case.
Thankfully, XDA Senior Member rootdefyxt320 has created a relatively quick guide that helps root quite a few Motorola devices—specifically those that use SBF firmware in CG2.smg format. The guide walks users through the process, starting with downloading and unpacking the SBF, to building your own CWM image, to using Elite Recognized Developer Chainfire’s SuperSU to achieve root access.
Thus far, this method has been tested on various Motorola devices, including the developer’s own Motorola Defy Mini XT320, as well as the Fire XT311, XT316, XT530, XT531, and Motoluxe XT615.
However, it should work on most (if not all) devices that use SBF firmware packaged in CG2.smg format.
To give this a shot on your own Moto, head over to the original thread. If you try this on a device that hasn’t yet been tested, be sure to let rootdefyxt320 know how it goes! As always, though, proceed with caution when applying any modification—especially if it hasn’t yet been tested on your own device.
Update: It appears as if this root method only works on Qualcomm-based devices running Gingerbread, and it is not universal, as was originally thought. As stated by XDA Recognized Developer mattlgroff:
This is not for all Moto Qualcomms, either. It has been patched for a very long time and is the opposite of far reaching as the OP suggests.