Isis hasn't shown us much more than a logo and a black and white rendering of its NFC-powered mobile payment system, but the outfit proved today that it has all of its ducks -- or, rather, major credit card companies -- in a row. According to the group -- a collaboration between AT&T, T-Mobile, and Verizon -- Isis will launch with Visa, MasterCard, Discover, and American Express on board. Back in May, we reported that the credit card alternative was shaking up its initial, Discover-only platform to let the competition in. Since then, the Goog's swept in with Google Wallet (backed by Sprint), which also counts MasterCard as a partner. Google's already got a head start, with Wallet trials underway in New York and San Francisco, but the internet giant might just need the lead, considering the list of heavy hitters Isis has lined up for its 2012 debut.

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