Square, the payments company that makes it easy for small businesses to accept credit card payments wherever you go, is finally catching up with the times today by updating its tiny card reader.

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Businesses that use Square's credit-card reader to process payments are in for a treat, as the company released an upgraded version today that's twice as thin as its predecessor and promises to read ...

Amazon on Wednesday unveiled a new mobile card reader, pushing the online retailer deeper into payment services and up against the likes of Square and eBay's PayPal. The new service, called Local ...