Visa and MasterCard are trying to make mobile payments a lot more accessible today as they both announce support for a new way to pay over NFC. HCE should subvert carrier restrictions Thats potentially a big change for mobile payments. While its primarily a behind-the-scenes adjustment, any app on a smartphone that supports the service should be able to act as a mobile wallet in the near future. The new process is called Host Card Emulation (HCE), and its supported by both Android KitKat — which is cited as part of the impetus behind todays announcements — and BlackBerry 10.