The iconic cube on Fifth Avenue in New York City is now reopened for business. The Apple store was closed for renovations nearly two years ago. Now the revamped location, double the size of the previous space, facilitates better business and optimizes users’ experience. The store is one of the first major openings since Deirdre O’Brien, Apple’s HR chief, took over as head of retail. She explained how “Apple worked with Foster + Partners to reimagine the…