The Isis consortium revealed in a recent announcement that its Isis mobile-payment system, which will potentially challenge Google Wallet, will be launched on October 22.

The announcement about the forthcoming launch of the Isis-mobile-payment system comes after a delay in its earlier-scheduled September launch. Though Isis - which is a joint venture of Verizon, AT&T, and T-Mobile - had put the previously-scheduled release of the system on hold officially, the company has revealed that there has been no change in the planned agenda for the system's initial rollout.

The initial availability of the Isis mobile-payment system will be limited only to a few hundred retailers in Salt Lake City and Austin. However, it has been revealed by some of the leading retail chains - including 7-Eleven, McDonald's, Macy's, Foot Locker, Jamba Juice, and The Home Depot, among others - that they will be accepting Isis payments.

Though these retailers have refrained from disclosing as to whether they will be part of the Isis mobile-payments system's upcoming launch, companies like American Express, Discover, Visa, and MasterCard have also announced that payments made via Isis will be accepted by them.

Meanwhile, stating that further details about the phones with which the Isis app will be compatible will be announced when the payments system is officially launched this coming Monday, Isis' marketing chief Jaymee Johnson told Wired: "By year end, as many as 20 Isis-ready handsets are expected to be in market."