H20nly wrote:its called a bar code. seriously.
you hold up your mobile device that can display images, and that check stand red laser gun that was hot news in the 80s is whats used to scan it.
your love for Apple is shadowed only by your love for Apple.
It's a little more involved than that. Barcode scanning apps have already been around for awhile.
This is about going into Home Depot and paying for it using your iPhone which would also involve local tax and getting money to the proper destination.