But will it be anything truly special?
Steve Jobs presented the service, which will incorporate a number of feature, from photo, document, and music syncing, to features that were previously included in MobileMe. The new service finally includes many features iOS users have been pining for, and is an answer for many of Apple's competitors' cloud-based services.
iCloud comes in light of MobileMe, Apple's previously cloud-based service, which had cost users $99 per year. The new service is free.
Everyone seems to have something to say, and we've compiled some of the best reactions from Twitter below.