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Mobile Minutes: Retailers’ mobile payments; Facebook’s new study; Pinterest’s app developers; Chinese smartphone market

Apple Pay is creaming Walmart in the mobile payment wars
Walmart and a host of other retailers are trying to make inroads in the mobile payments marketplace. And they’re failing.
Read more on Time

Facebook reveals the reason why you may agree with most of your newsfeed
Facebook’s new study looked at millions of its most political users to determine whether the site is becoming an echo chamber where users only see information from like-minded friends.
Read more on ABC News

Pinterest opens door to app developers, expects new recipe, wedding, travel tools
Last month, the visual bookmarking site officially opened its application program interface (API) to select marketers and advertisers. As of this week, developers can also apply to build apps for pinners for the first time.
Read more on Forbes

Chinese smartphone market, world’s largest, shrinks in first-quarter: study
China’s smartphone market has reached saturation, according to a new study by industry analyst IDC that carries potentially significant implications for the global handset industry led by giants like Apple Inc and Samsung Electronics Co Ltd.
Read more on Reuters