The two-hour-long Apple event has wrapped in Cupertino, Calif., ending with a live performance by U2. The appearance by Bono and band mates, which had been rumored, brought enthusiastic applause from the crowd. The band's new album, "Songs of Innocence," was then released on iTunes for free.
CEO Tim Cook touted it as the largest album release of all time.
But the centerpiece of Tuesday's event was arguably the unveiling of Apple Watch, "the most personal device we've ever created," Cook said.
It's Apple's first venture into wearable tech. A dial on the side of the watch acts as the "digital crown" for control and navigation; you also...