We thought it was worth noting that you don't have to get a 5.1G iPod with the brighter screen and longer battery life to play the new iPod games. Your regular old 5G Video does Tetris just fine. All you have to do is plug in your iPod, and the new iTunes 7 will ask to upgrade the firmware on your device. The update process is actually handled right inside inside iTunes instead of a separate iPod Updater like before.
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Once it's done updating, you can head to the iTunes store and download the games onto your 5G iPod (1-4G and Nanos don't work). Oh, and these games do not work in iTunes, something that we would have liked. Check the jump for more screenshots.