Can you actually buy one from Google?
They may be trying to fix some issues...
http://www.droid-life.com/2012/11/2...-idea-since-the-last-phone-with-a-glass-back/
Nexus 4's are unobtanium right now. The $299-$349 OFF CONTRACT pricing has made them a HUGE hit. I've got a Galaxy S3 and I considered buying a Nexus 4 but I never could get an order placed before Google sold out. I'll just hold out at this point for the Galaxy S4 since it's likely to have an A15 SOC (assuming Sammy can work out the power issues).
The iPhone 5 and iOS 6 and are just boring to me at this point. You can't jailbreak it and it's really nothing more than a stretched iPhone 4 that runs a little faster. Large screen phones are the future whether Steve Jobs liked it or not. Apple can figure that out or watch as Samsung continually steals sales from Apple.