NFC and mobile payments have been buzzwords in the industry for some time now, but paying for stuff with your smartphones still isn't something even the most technologically-minded do very often. However, a new deal announced today by Isis (a joint mobile payment venture between AT&T, Verizon Wireless, and T-Mobile) might help change that. Isis now has four new payment system partners: VeriFone, Ingenico, VIVOtech, and Equinox. Under this new agreement, these four companies will integrate and support the NFC-based Isis Mobile Wallet platform in their current and future product offerings. These companies are a natural fit for Isis' offerings: VeriFone is one of the biggest providers of point-of-sale payment solutions, and VIVOtech has already developed end-to-end NFC-based payment system. Still, while these partners make sense for Isis, their support doesn't mean Isis will have any more luck finding users— the company announced a partnership with financial juggernauts MasterCard, Visa, Discover, and American Express last summer, but the service didn't gain wide adoption after that deal.