According to Apple the latest iOS 4 has over 100 new features. You can do some amazing things with the free iOS 4 software updates.
Here are some new features about the latest iOS 4:
Multitasking, you can switch from one application to another instantly.
Folders, you can orrganize apps into folders with drag-and-drop simplicity. Get faster access to your favorites and browse and manage up to 2160 apps.
Even better mail, See messages from all your accounts in a unified inbox, organize messages by threads, open attachments in third-party apps, and more.
iBooks, more than a great ebook reader, iBooks is also an amazing place to browse and shop for books, day or night.
Those are just of some of the many new features of iOS 4. You can check out for more visit Apple's website: http://www.apple.com/iphone/softwareupdate/
I also included here the instructions on how to update iOS 4 .
Step 1. Make sure you are using the latest version of iTunes. Connect your iPhone to your computer.
Step 2. When iTunes opens, select your iPhone under Devices in the Source List on the left.
Step 3. In the iPhone Summary pane, click Check for Update.
Step 4. Click Download and Install. Do not disconnect your iPhone until the update has finished.
Step 1. Make sure you are using the latest version of iTunes. Connect your iPhone to your computer.
Step 2. When iTunes opens, select your iPhone under Devices in the Source List on the left.
Step 3. In the iPhone Summary pane, click Check for Update.
Step 4. Click Download and Install. Do not disconnect your iPhone until the update has finished.
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