I'm working on a(n unreleased) project using Estimote's beacons for a local client associated with tourism. The use case is fairly obvious for that market, I think.
Yeah, I think that's probably a great use case for them. I believe one idea I overheard was using them in our local hospital for maps, location of key rooms (surgery and such) and things like that.
Thanks for referencing Estimote, those look promising.