What is this mysterious and scary 'iCloud' of which you speak? I thought you'd never ask. My goal with this article is to give you an overview of iCloud and hopefully shed some light on a few features you might not have been aware of. I realize I just ended that last sentence with a preposition. Forgive me, Grammar monsters!
So as I was saying, iCloud is a wonderful service that allows you to store your content and wirelessly sync it between all of your devices. For starters, you get 5GB of free storage for mail, documents, account information, settings, and app data. Need more? Just hit "Settings" on your device and you can sign up for more right there under "iCloud > Storage and Backup > Buy More Storage." 10GB will run you about $20/year at the time of this post.