You really can’t make this up, folks.
Apparently, the iPhone 5 shipped with a bug that prevented owners of the device from receiving over-the-air (OTA) updates from Apple. A software update pushed to iPhone 5 devices today remedies the issue, downloading an application to your homescreen that allows you to install iOS 6.0.1. The iOS 6.0.1 update provides a full fix to the OTA update debacle as well as various bugfixes, including the bug that sometimes saw the iPhone using cellular data even when connected to WiFi.
The software update to iOS 6.0.1 is available now for iPhone, iPod Touch, and iPad devices.