I prefer to do my on-line shopping on my Mac instead of my iDevices. Could we see Apple Pay added to the Mac and what would it require? Could we get a USB Finger Print reader? Could the iPhone's Finger Print reader use Continuity to approve on the Mac? Can the secure tokens be keep on a Mac or would it require an new chipset? Are there any other issues involved? It seems adding Apple Pay to the Mac would open another huge revenue stream for Apple.