Google's been rolling out Android 4.2.2 to all manner of Nexirecently, including the Nexus 4. However, should you be among those yet to receive the latest and greatest Jelly Bean build, you can go grab the software yourself and do your updating the old fashioned (as opposed to the OTA) way. The code is currently available for the Nexus 4, 7, 10 and GSM GNex models, so impatient owners should head on over to Google Developers and get their download on.