Tetris video game
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Tech review: Tetris the Movie and more headlines

BBC Click rounds up some of the week's top technology stories including the news that Microsoft has unveiled details of its new operating system Windows 10.

Pro-democracy protesters in Hong Kong have embraced the Bluetooth-powered messaging app Firechat and the classic video game Tetris is to be made into an "epic sci-fi story".

More at BBC.com/Click and @BBCClick.

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