And rather than being valued in its own right, music, he suggests, has "become the free toy in the cereal".

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To purportedly keep children from being lured into eating food that causes obesity and other physiological mishaps, the ban, effective December 2011, prohibits restaurants from offering a free toy or prize with meals that exceed 600 calories, 650 mgs of sodium, and fat levels exceeding 35% of total calories.

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Mobile phone users could download a mobile game, after which Puma sent them a coupon for a free phone toy accessory.

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Property rights also mean you are free to sell off a game or toy to a sibling, as long as the buyer fully understands the consequences of the deal.

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Vudu is available on thousands of devices (including TVs and PlayStation consoles) and it can work with Wal-Mart to do things like offering a free digital copy of a movie like Toy Story 3 with every purchase of the physical DVD.

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At Walmart, QR codes next to 3D toy graphics allow holiday shoppers to scan and make a purchase directly and receive free shipping.

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While part of that game is the typical user experience of going through the narrative of the movie, another part features a toy box where players can collect and play with different toys in a more free-form environment.

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But on Tuesday, when Google revealed its new browser known as Chrome, it became clear how GreenBorder's engineers have been earning their free lunches for the last 15 months: devising a way to inoculate the search giant's new toy against the Web's epidemic of cybercrime.

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