Isis, a mobile wallet venture born out of a partnership between Verizon Wireless, AT&T and T-Mobile USA, will launch its trials in Salt Lake City and Austin, Texas, on Oct. 22. The goal is to have 20 Isis-ready mobile phones by the end of the year, according to an Isis spokesman. Isis will enter an arena occupied by the likes of Square and PayPal. Isis-ready phones will use near-field communication (NFC) to conduct transactions at retailers’ registers. NFC-enabled smartphones
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