General Does Google have a Complete Service like iCloud

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http://androidforums.com – Looking to get a Sammy SG3 this week but only if there is a service like iCloud. I want the ability to back all calendar, contacts, photos, game and app data just like iCloud does. If I had to switch my GS3 for a warranty unit I need to be able to keep everything and restore it just like the iphone does, I do not want to have to reload everything or lose any of my data? Anyone switch from icloud and using some service from Google? Thanks (General)