Verizon on Friday revealed that iPhone demand was actually up in spring despite a full push from Android. The carrier activated 2.3 million iPhone 4s in spring, up from 2.2 million in winter. The company added 2.2 million total cellphone customers, including 1.3 million of the retail subscribers core to the iPhone and 3G iPads; Apple's support meant Verizon had the best subscriber growth in 2.5 years.