Chicken or the Egg... which comes first? That's one problem. Must support it in the phone (or wearable) before you can use it at the store... must support it at

Chicken or the Egg... which comes first? That's one problem. Must support it in the phone (or wearable) before you can use it at the store... must support it at the store before it's worth supporting on the phone... The second issue is fragmentation. Look at wireless charging. Two separate solutions. What works at McDonald's won't work at Starbucks (and vice versa). Although both support wireless charging, they support different models. http://www.androidauthority.com/qi-a4wp-wireless-charging-standards-190836/ http://www.androidauthority.com/qi-a4wp-wireless-charging-st... What use is a wireless payment service going to be if 90% of phones can't use it? When there is a competing standard?