Apparently, the very first official purchaser of the Samsung Galaxy Nexus in the UK ended up unhappy with his new Galaxy Nexus and had to return it. Luckily this story has a happy ending. According to the report, the customer, named Alex Ioannou, was "...having trouble syncing with Gmail because the usual account setup options are missing. Instead, his phone was apparently preloaded with a bunch of weird dev stuff -- including the handy option to "Report a WTF condition."
As it turns out, more than likely, somehow a developer Galaxy Nexus was packaged up and fell into his hands. He returned the phone, and while he waited the apologetic retailers stuffed him with Ice Cream Sandwiches and his new G-Nex was good to go!
...and he lived happily ever after. The End.