iOS 5 for iPhone 4: 5 Updated Features and How to Download

1. iCloud

iOS 5 will be the first to have iCloud, which automatically syncs all documents, apps, calendars, mail, contacts, photos and music to all devices owned by the user. Users will get 5 GB of the service for free upon signing up and can purchase additional storage if needed. 10 GB is $20, 20 GB is $40 and 50 GB is $100 and can be purchased directly from the iPhone 4.

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2. iTunes Match

All music can be synced with iTunes Match, previously sold for $24.99 per year. The service lets you store all music, including iTunes purchases and music you may have swiped elsewhere.

3. Photo Editing

It's like Photoshop built right into your iPhone 4. Now, users can click edit and crop, rid of red eye and enhance photos remotely right within the library.

4. Camera Speed Upgrade

By double clicking the home button, users can snap a photo without ever leaving the lock screen. Essentially, the camera upgrade allows everyone to feel like a novice paparazzi, and refrain from looking like a klutz when trying to enter your password and quickly snap a photo.

5. iMessage

iMessage is basically Apple's version of BlackBerry messaging (BBM) allowing users to send and receive free SMS texts, photos, locations and contacts to fellow iOS 5 users. iMessage also allows users to start a conversation on one Apple device and continue on another.

Here's how you can upgrade to iOS 5 for free: