I love the CyanogenMod guys. And they’re really, really fast, so they’ve now pushed out the first CM10.1 nightly, based on 4.2 Jelly Bean, for the new Nexus phone, the Nexus 4.
The Nexus 4 is the first device to get a 4.2-based CM10.1 ROM, with the Nexus 10 tablet which will follow soon enough. The other devices, that is, the Galaxy Nexus and Nexus 7 et al, will get the update when they’re done merging the code.
I can’t wait.