Paul Armstrong blogging at PaidContent thinks that Flipboard poses a major threat to content industries and magazine publishers in particular:

The reality the publishing needs to understand, though, is that Flipboard has (smartly) maneuvered itself into a powerful position. With the flick of a switch, it could deal a serious blow not only to the traditional old media but also to a variety of digital platforms – Tumblr, Flickr, WordPress, among others – as it pivots from purely curation-based interaction

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