A search for "Galaxy Nexus" on their web site will get you this page. It sports a fancy new press shot of the GS and a one line description, "Sign up to get the latest on the Galaxy Nexus from Verizon."
So there you have it. The Galaxy Nexus is on Verizon. The wording makes it sound like it's exclusive to Verizon, doesn't it? We'll find out soon enough.
Pay attention everybody. Things are about to get crazy around here.
Source: Samsung.com (Thanks, NG)