I don't believe it is completely different. I believe that it's also contactless EMV. If Sugar Mama's Bake Shop accepts PayPass/payWave I BELIEVE they also accept ISIS. Whether she wants to or not (and it sounds like she doesn't want to). If she refuses to accept ISIS, then she could get penalized for violating the terms of her merchant agreement.
It's the same thing as far as the tech goes. It's NFC just the same but I thought that using a generic system like MasterCard paypass that alot of merchants already have would make the adoption rate for this better than a proprietary system. But if the cc processors are forcing it I suppose it won't be like I thought...
As I said in the other thread I don't believe it's in any way proprietary. Just standard contactless EMV. And the processors aren't forcing it, the networks are. There are incentives for merchants to have the terminals starting THIS MONTH and the processors are REQUIRED by April 2013 to support EMV (contact and contactless)
Reading comprehension is useful. I said IF you accept contactless EMV you have to accept all cards including Google Wallet etc. I never said you have to accept any contactless EMV. There will be incentives coming to do so mostly in the form of easier PCI compliance.