Hold your horses -- the Nexus 7 doesn't have Android 4.2 just yet. But no-one seems to have told UK retailer HMV, which is putting out newspaper ads for the new 32GB version of Google's tablet, suggesting it'll come "with Android 4.2 Jelly Bean."
As Android 4.2 has yet to be finalized and open-sourced, you won't find it on any tablets currently on store shelves, and that includes the newly-released 32GB Nexus 7. But we're sure Google won't waste any time in pushing that 4.2 update out to Nexus 7 tablets just as soon as it's ready. Keep watching as we approach the Nov. 13 launch date for Nexus 4 and Nexus 10!