iOS 7 is a major interface upgrade for the iPhone and iPad. Apple CEO Tim Cook described the update as being "the biggest change to the iPhone since 2007".
I have tons of photos and this was seriously slowing my computer down. It took a bit of hunting to figure out how to do this since the option is apparently not in iTunes.
When somebody bookmarks your website on their iPhone or iPad, you probably want your website's logo to appear as the bookmark icon.