The biggest news in the past couple of days has been the release of Android 4.2.2, which brings Quick Settings toggles, app download countdown timers, some new sounds and a number of bug fixes. The update has been rolling out to various Nexus devices, and Google have now posted the 4.2.2 factory images.
If you want to restore your device to stock or you’ve somehow managed to brick your Nexus device, head on over to the Factory Images for Nexus Devices page and grab the relevant image.