Here is a vlog about that I think the new iCloud Drive and the changes Apple is doing to iCloud in iOS 8 and OS X Yosemite will be great. iCloud drive is like a new files system for Apple devices. It will make it even better and easier to be productive and creative on iOS devices.
The new iCloud Photo Library makes viewing, organizing, and storing your entire photo and video library effortless and worry-free — from any device. iCloud Drive lets you work on any file from anywhere so you’ll always have the latest version with you. And Family Sharing makes it easy to share family members’ purchases from the iTunes Store, the App Store, and the iBooks Store, as well as family photos, calendars, and more.