Anderton
At this point, we know for sure the update will happen today or tomorrow. That narrows it down, right? 
...or...it could end up being one of those situations where the product is released on March 32nd, so that the schedule can slip and
still ship in March.
(I've actually seen this happen before. A very large corporation known by a three letter designator...shipped a certain OS update on something like January 32nd in order to have it go out in a given year.)