Oh and just for the record and BG's apparently bad memory:
This did and has gone on with the iPhone as well. I can remember when it first launched people were complaining that some screens were more yellow while others more bluish.
Here is a link from a quick google search:
Daring Fireball: iPhone Display Color Temperature, and the Difference Between Builds 5A345 and 5A347 of the iPhone OS
There are many many more links and stories along the same lines. This is basically a non story and a common occurrence. BG is just butt hurt because he knows the Nexus is the best mobile device out right now.