Apple - MobileMe - MobileMe transition and iCloud
iCloud is Apple’s new cloud service, which stores your music, photos, apps, calendars, and documents and wirelessly pushes them to all your devices. iCloud integrates seamlessly with your apps, so everything happens automatically. iCloud will be free for iOS 5 and OS X Lion users. More information is available at apple.com.
Though I think that iCloud will be a great service, I am a little disappointed that some of the MobileMe services I’ve come to rely on are going away. No more iDisk storage, no more web hosting, no more photo galleries. Alas.