Apple iPod touch iOS 4.3 - Manual (Page 149)

App Store
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About the App Store
You can search for, browse, review, purchase, and download apps from the App Store
directly to iPod touch. Apps that you download and install from the App Store on
iPod touch are backed up to your iTunes library the next time you sync iPod touch
with your computer. When you sync iPod touch, you can also install apps you’ve
purchased or downloaded from the iTunes Store on your computer.
Note: The App Store may not be available in all countries or regions, and App Store
content may vary by country or region. Features are subject to change.
To browse the App Store, iPod touch must join a Wi-Fi network that’s connected to the
Internet. See “Connecting to the Internet” on page 19. To download apps, you also need
an Apple ID (may not be available in all countries or regions). By default, iPod touch
gets your Apple ID settings from iTunes. If you don’t have an Apple ID, or if you want
to make purchases using another Apple ID, go to Settings > Store. See “Store” on
page 169.
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