The yellow bar that we have captured in the image above just appeared on Google Play. It reads:
Google Play is currently experiencing very high traffic. Nexus 4 is not sold out and will still be available for purchase. Please try again shortly. Thank you for your patience.
So, there you have it. The Nexus 4 is not sold out. Try again later.
Cheers Teng, Adam, Aaron, and Baldypal!