How to install iOS 8 on your iPhone, iPod touch, or iPad using iTunes

[iMore.com]

iOS 8 is here and the only thing left for you to do is update your iPhone or iPad. While updating to iOS 8 over-the-air is faster and more convenient, if it's not showing up for you, we can walk you through how to manually update via your computer with iTunes.

Full story from the iMore Blog...