They have them, yes. In other countries, forget where, and I think Wally World might have tried a US limited roll-out with some push back. It is coming though, as are the cameras everywhere, FLOCK, in store facial regog., etc.

Just saw a video where a dude went into WallFart, w/o his phone, paid cash for a usb cable and was e-mailed a survey regarding his service experience. So, facial regog. tied into his e-mail (he doesn’t have a WallFart app installed either : aka precursor for e-mail tie in).