This thing doesn't have a pause button. You have to double-click the "home" button (why not a single-click? too easy?) and then find the pause icon on the touchscreen.
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Because "iPod" is synonymous with mp3 players, and the iPod Touch 5G is the most expensive iPod, it follows that this device would be a really really good mp3 player. But it's actually a crappy mp3 player. As a pocket computer it has its charms, but it's a crappy mp3 player.
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A commenter supplies a link to a Slate article complaining about the exact same thing, but in much more detail.