Interest in mobile commerce in the US has exploded, especially in the past few weeks, but the space could be growing too large for its own good, according to one alternative payments provider. (See Google, Apple Fight Carriers for Mobile Money.)

Chicago-based startup mPayy is on a mission to rid the world of credit cards, and it believes that the wireless operators should do the same.

AT&T Inc. (NYSE: T), Verizon Wireless , and T-Mobile USAare trialing contactless payments by leaning on Discover Financial Services and Barclays Bank, two partners that ensure the carriers will always be the weakest link, says mPayy CEO and former banker Conrad Sheehan. (See Mo'bile Money, Mo' Problems and Operators Cash In on Mobile Payments .)