Nexus 4 and 10 orders continue to roll through the time zones as the Android 4.2 download links start to come in as well. We've seen one go live for the GSM Galaxy Nexus, and now we've got one for the Nexus 7 as well.
Eager users with a Nexus 7 on stock Android 4.1.2 can download and apply the update at their convenience, provided they have a few of the right tools and a little time on their hands. We have a great how-to guide available that explains how to do just that right below, just substitute in the file names included in 4.2. There's also no shame in waiting for the OTA to hit your device, as it'll surely be rolling out shortly.