|English: A photograph of eBay's Whitman Campus (corporate headquarters), taken from Greylands Dr. on Memorial Day 2009. For more photos of eBay and Google, visit http://www.foothillwebdesign.com (Photo credit: Wikipedia)|
While I have some reservations about how some of this works under the restrictions imposed by the Payment Card Industry (PCI) standards for isolating credit card info, they assured me that they understand that complexity and it is comprehended in their systems.
It is very impressive and very cool technology. I would think that retailers would be quite interested - and perhaps a little intimidated - at how fast this stuff is moving.