The document discusses competing mobile payment systems using near field communication (NFC) chips in smartphones. Major players like Apple, Samsung, and a joint venture between Google, AT&T, T-Mobile, and Verizon had developed systems to enable contactless payments at point-of-sale by transferring payment credentials from mobile devices. These systems functioned similarly to existing credit card payments. The document then discusses how dominant designs emerge in industries and how network effects can reinforce a technology's dominance as more users and complementary assets are adopted.