Apple iOS 4.3: A guide to getting started

Here's how you can take advantage of all the operating system's new features.

If you haven't synced your iPhone, iPod Touch or iPad in the last 24 hours, you've got a surprise waiting for you: Apple has released iOS 4.3, promising new ways to access iTunes content, a Wi-Fi personal hotspot option and improved browser speeds. If you want to find out how to activate all the new features on your device, here's your getting-started guide to get the most out of iOS 4.3.

First, the bad news

Apple's latest mobile OS will only work on the iPhone 3GS, iPhone 4, iPad, iPad 2 and third- and fourth-generation iPod Touch devices. Sorry, iPhone 3G owners, but it looks like you've been deprecated. And watch out iPhone 3GS users, because chances are you're next on the list to be dropped from the iOS update parties.

Now that we've got that unpleasantness out of the way, here's what you can do with the top new features in iOS 4.3.

iTunes Home Sharing

You no longer have to sync and transfer content to your iOS device to watch a movie saved in your iTunes library. Instead, you can just stream it over your home Wi-Fi network straight from your PC to your iOS device. To get started, authorize iTunes Home Sharing on your PC by clicking on Advanced>Create Home Share. You will be prompted for your Apple ID and password. Then you need to do the same thing on your iOS devices by opening up the settings app (the silver cog) and selecting the orange iPod icon. You will find a heading called "Home Sharing" and all you have to do is enter your Apple ID and password again. For an in-depth look at how to set-up iTunes Home Sharing, check out my colleague Mike Keller's step-by-step guide.

As long as both your PC and iOS device are on the same Wi-Fi network you're now ready to access your PC content on your iOS device. On an iPhone or iPod Touch all your content is accessed via the iPod application. Just select the "More" menu item at the bottom of the app and on the next screen select the "Shared" icon at the bottom. You can then choose to access your iPhone's local library or the content on your PC.

The iPad's options are a little different for accessing Home Sharing content. You access music and podcasts through the tablet's iPod application just like on the iPhone. To switch between your Home Sharing libraries and your iPad's saved library tap the top menu item on the left hand side of the iPod home screen.

If you want to view video content, you need to use the iPad's "Videos" app, and select the "Shared" tab at the top of screen. This will show you your available Home Sharing library. Select it and you will be able to access all iTunes video content including movies, TV Shows, music videos, movie trailers, video podcasts and iTunes U. Keep in mind you will only be able to view videos that are in your iTunes library, and not all of the video content stored on your PC. For a tutorial on how to convert video into iTunes-friendly content start with these guides for Mac or Windows PC.

Personal Hotspot

You can turn your iPhone 4 or iPhone 3GS into a personal Wi-Fi hotspot that lets you share your phone's cellular data connection with up to five other devices. To get started open your settings app and select "Personal Hotspot." Then just activate it by tapping the on/off slider button. If your Bluetooth connectivity is off you will be prompted to turn it on or you can tether your device via USB to a laptop or other compatible device.

Additional charges apply for using the iPhone's personal hotspot feature, and keep in mind you will lose your unlimited AT&T data plan if you sign up to use iOS 4.3's personal hotspot. You can find out more about AT&T's data plans for personal hotspot here. Verizon customers aren't getting the same iOS 4.3 update, but you can learn about Verizon's iOS personal hotspot feature here.

AirPlay

Apple has extended its AirPlay feature, which can stream audio, images and video content from your iOS device to a second-generation Apple TV, to include third-party applications and the iPad's photos app. There's nothing to activate here as this is a feature that developers will have to implement with an update. If an application is AirPlay compatible, you will see an AirPlay icon within the app. Just tap on it and select "AppleTV" to stream content directly to your television.

iPad Side Switch

If you were one of the many who cried out when the iPad's side switch was changed from a screen rotation lock button to a mute button, your cries have been heard. The iPad's side switch is a mute button by default, but if you want to change that to a rotation lock, just open your iPad's settings app and select "General." Under the heading "Use Side Switch to:" you can select between screen rotation lock and mute.

Apple's iOS 4.3 also claims faster JavaScript speeds within the Safari mobile browser for a speedier Web browsing experience.

Connect with Ian Paul ( @ianpaul ) and Today@PCWorld on Twitter for the latest tech news and analysis.

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Ian Paul

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