This makes a LOT of sense for the elderly. My grandmother occasionally schedules a pickup from her home in the suburbs, and the system is very lacking. First off, it's based on scheduling a time far in advance. Second, there's no way to get real time updates. Third, the van/bus that picks her up is often EMPTY!

I see a lot of people trying to map the functionality of this onto their non-retired lifestyles, but I think that's missing the point. This will mostly benefit seniors.