I went to a Best Buy today and compared my N4's screen directly to a Optimus G. I didn't actually think my screen looked yellow at all until I compared it to the Optimus G. My N4's screen looked terribly yellow, was less bright, and had worse viewing angles than both of the Optimus G's my local Best Buy had on display.
Based off the first post in this thread for the GNex, I set my Nexus 4 to settings of:
I haven't tinkered too much but this seems to make things a bit better.
Has anyone else experienced the screen turning very yellow, almost brown, when viewing from the corners of the device? I am pretty unhappy with the viewing angles on the phone, especially after comparing it to the Optimus G, which is supposed to have the same display.