The 90 day subscription period represents 78 publishing days over a 13 week period from start date. This offer is available to new subscribers in selected areas only. Cannot be used in conjunction with any other offer and is not transferable. Valid for new subscribers only - limit one per household. No cash value. Offer expires December 3, 2010.
Note that it does state that it's for select areas only so while it seems to work, it might not work for everyone. So far, most people are having success in the Forums.