At the keynote presentation that opens its annual Worldwide Developers Conference (WWDC) in San Francisco, Apple announced iCloud. Expanding and improving upon the company’s previous cloud storage offering, MobileMe, iCloud is intended to back up important device data, including calendars, contacts, applications, and photos, on Apple’s servers. The company had previously highlighted its new, state-of-the-art data center in Maiden, North Carolina. Users will get 5GB of free storage, and add up to 10 devices on one account. Also included are extensive iTunes integration and new Photo Stream synching service.