This is kinda crazy when you really think about it.
iOS 7 downloads consumed 20 percent of an ISP's traffic on release day | Ars Technica
When Apple released iOS 7 to the world at 1pm ET on Sept. 18, legions of iPhone and iPad owners immediately downloaded the new operating system. That's no surprise, but statistics released today illustrate just how much of an impact the mobile OS had on Internet traffic.
iOS 7 downloads consumed 20 percent of an ISP's traffic on release day | Ars Technica