I'm looking for clever example of mobile phones interacting with the
environment, like in a museum or a retail space. I'm thinking of
interactions like pushing information to phones while the person is on-
site, or having them use their phone to make queries or send text
messages to an on-site system. I feel like this has come up on the
list before, but I didn't find anything in the archives.
I'm not sure if this technology would just be a gimmick, or something
that could be made useful and/or fun. Obviously, I'd prefer useful AND