Apple fanboys and girls will want to set their iCals and synchronize their Apple Watches, because Apple's gleaming new Union Square retail store at 300 Post Street will open this Saturday, May 21st, at 10 a.m. That means throwing open two, 40-foot by 23-foot glass panel doors that will greet shoppers. The current downtown Apple store, at Market Street on 1 Stockton, will close its humbler, single-story doors for good the night before at 9 p.m. Apple mentioned the completion of the move on its website and Curbed also reported on the opening. It looks like there will even be some pomp, with live music in the plaza during the opening week.

The new Union Square flagship, designed by architect Norman Foster, got approval in March 2014 after it revised designs for the structure, leaving room for a bronze fountain that was designed by the late local artist Ruth Asawa. That, if you remember the former Levi's store that occupied the space, sat on diagonal brick steps. In presenting the designs, Apple's development director declared that, "The project will be the flagship for Apple. It will be more iconic than the glass cube you may have seen in New York City."

The construction was last in the news when, in November of last year, a double-decker tour bus collided with the construction site, launching investigations into the safety of the bus company's equipment and practices.

This is how the site appeared about a week ago, and apparently, all the curtains and such will be coming down soon.

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