Meanwhile, Carphone Warehouse has been putting up some of the promotional materials it has on hand for the LG Nexus 4. One thing that we've spotted from the promotional materials is that the device will not be loaded with Android 4.2 out of the box as expected. While this might be a tad disappointing to some, Android 4.2 is not expected to be Key Lime Pie and we wouldn't be surprised to see the latest OS build sent out quickly after the phone is launched. After all, it is a 'Nexus' and while some of you might be saying, "after all it is an LG," we expect the LG Nexus 4 to be right at the front of the line for new updates. Having said that, it does seems strange to be introducing a new Nexus device without it having the latest OS build right out of the box, especially since Android 4.2 is supposedly part of the same event that introduces the model.
source: XDA via AndroidAuthority