The time aspect is pretty huge - the examples they were using were pretty much time dependent. However, I could see this being useful for groups of friends who

The time aspect is pretty huge - the examples they were using were pretty much time dependent. However, I could see this being useful for groups of friends who decide to split up during a group outing. Traversing a huge outlet mall or large park or something. Imagine walking past a playground and you find a note from a friend "Hey guys, we're meeting at this playground at 5pm." That would be pretty neat. However, outside of that, I'd love to hear more examples from the creators as to what else it would be good for!