After two years of work, the wrapper comes off the giant glass cube this week, as Apple’s Fifth Avenue flagship opens to the public this Friday.The big reveal coincides with the company’s latest releases, including new iPhones and an Apple Watch — an appropriately grandiose homecoming for new gear.The cube itself appears largely unchanged, aside from a new shine.The colorful concealer wrap was, sadly, just temporary.But then, why mess with what’s become a New York City landmark in its decade and a half of existence?The store is positioned in one of the most highly trafficked corners of the city, at the southeast corner of Central Park, directly across from the Plaza (and perhaps less attractively to some, two blocks north of a certain presidential tower).