At the show, Intel and Microsoft announced a new digital display device.  You can read the news release here, but a video may be more helpful.

While I’ll admit this ranked higher because of it’s high-tech nature as opposed to measurable business benefit, it really is a good representation of the things that are starting to happen in digital signage.  At some point digital signage, augmented reality and customer loyalty will start to come together.  This represents a unique look at interactive technologies that will start to differentiate the experience for the customer in-store/restaurant.