Apple's primary manufacturing partner, Foxconn, is now churning out a tremendous number of iPhone 4s per day, according to the latter company's chairman. Terry Gou notes that the company is producing about 137,000 iPhone 4s per day at its Longhua campus plant in Shenzhen, China. The rate translates into 1.5 per second, 90 a minute and over 50 million a year.
