Unless something has changed, the article you linked to is basically the end of the story. Despite promises, Verizon has not moved to permit the Nexus 7 on their network, and there is no easy/useful enforcement mechanism to make them do so. The provisions are effectively toothless.
If you read forum reports, it seems people are activating it by using IMEI numbers from other tablets and whatnot, but Verizon is not making it easy, or (IMO) living up to their contractual obligations.
