Even though it was initially met with some criticism, Apple's newest handset hasn't had any problems flying off the shelf. Yesterday morning, the Cupertino company reported that it sold a staggering 4 million iPhone 4S units during opening weekend.
Not only did the three day sell-a-thon set a company best for Apple in handset sales, it also helped US-based carriers like Sprint and AT&T set single-day sales records. And it looks like the smartphone's unprecedented run is only just beginning...