How do I sign up for iCloud?
You can sign up for iCloud on an iPhone, iPad, or iPod touch with iOS 5 or later, or through System Preferences on a Mac with OS X Lion v10.7.4 or later. Just follow the setup instructions for your iOS device or Mac.
Note: You may need to verify the email address that you use for your Apple ID. See Frequently Asked Questions About Apple ID for more information.
I had a free Find My iPhone account. How do I sign up for iCloud?
Update the devices you are using with Find My iPhone to iOS 5 (iOS 6 recommended). When you’re asked to enter an Apple ID during setup, enter the Apple ID you were using for Free Find My iPhone. Your account will be automatically updated to iCloud.
I had a MobileMe account. How do I sign up for iCloud?
To use your MobileMe account for iCloud, follow the iCloud setup instructions and enter the @me.com or @mac.com email address as your Apple ID. If you had an @me.com address, it will be reactivated for email when you sign up for iCloud. @mac.com addresses will not be reactivated for email, but you can set up a new @icloud.com email address to use with iCloud.
Important: You will need a verified email address associated with your @me.com or @mac.com Apple ID to set up iCloud. To add a verified email address, go to appleid.apple.com, sign in with your @me.com or @mac.com email address, and add a valid email address to your account.
Which Apple ID should I use when signing up for iCloud?
See this article for more information.
Can I use different Apple IDs for iCloud services and Store purchases (iTunes, App Store, iBookstore)?
When you setup your iOS device, by default the same Apple ID is used for iCloud services and store purchases (iTunes, App Store, iBookstore). However, if you want to use a separate Apple ID, you can set up the account you would like to use in Store Settings.
How do I set up iCloud on my iOS devices, Mac, and PC?
To set up iCloud, first check that your device(s) and computer(s) meet the iCloud System Requirements. Then follow these simple instructions to set up iCloud on your iPhone, iPad, iPod touch, Mac, and PC.
What are the system requirements for using iCloud on my iPhone, iPad, iPod touch, Mac, and PC?
You’ll need at least iOS 5 or later, OS X Lion v10.7.5 or later, or Microsoft Windows 7 or Vista (SP2) or later to use iCloud. To use all iCloud services, see the detailed system requirements.
How do I manage my iCloud account, such as my password and security questions?
To update your information, passwords, and security questions, visit My Apple ID (appleid.apple.com).
Can I use an Apple ID that isn’t an email address to sign up for an iCloud account?
No. Your Apple ID must be a full email address (e.g. firstname.lastname@example.org) to sign up for an iCloud account. If your existing Apple ID is not in the format of an email address, you can change it to an email address at My Apple ID.