Visa payWave, MasterCard PayPass and ExpressPay, NFC and RFID
Yes. They are all part of the same association.
Yes. The PayPass, et. al. cards are embedded with an RFID inlay that meets ISO 14443-A and ISO 14443-B standards and operates at 13.56MHz (same as cell phones)[1].


Just because they have the physical layer, however, does not mean that this will be supported for cell phones due to the security risk it represents. Some payment solutions and near-field companies have implemented their own payment systems on top of NFC independent of EMV [2] [3].