Engadget updated the Costco article w a Verizon screen shot indicating 12/15. Also the white razr on 12/15.
http://www.engadget.com/2011/12/13/verizons-galaxy-nexus-hitting-costco-on-december-15/
http://www.engadget.com/2011/12/13/verizons-galaxy-nexus-hitting-costco-on-december-15/