[PaulMest]

I was just in the DTW airport a few weeks ago and experienced this firsthand!

The representative said there can be up to 100 people in this large-ish rectangular area and each person can only see their details and nobody else's (even as everybody moves around). Everybody outside of the rectangle sees generic information.

I'm generally pretty good with figuring out how things work. I could figure out the tracking piece, but I definitely didn't figure out how they could so accurately make sure that I could read my info everywhere within that box. There are some other comments here that describe how it works -- pretty cool!

I was definitely amazed at how well this actually worked with about 10 other people also testing it out. Privacy issues aside, this is an amazing experience to be able to be on-the-move and see a giant arrow that points you to exactly where you need to go in an airport you're unfamiliar with.