I can imagine two unmentioned scenarios that would be useful for a business, so far. One is the food truck biz model and trade shows, maker fair, state fair ty

I can imagine two unmentioned scenarios that would be useful for a business, so far. One is the food truck biz model and trade shows, maker fair, state fair type events. Assuming the fad hangs on long enough, I suspect every "work truck" in the country could end up with a spam transmitter, so if a neighbor hires a plumber the neighbors will all be spammed while the plumber truck is on site. The other is playing weird games with powering the beacon off the same power strip or wall outlet as the "Open" sign, on the theory that spamming people when you're not even open isn't nice. So, open for business, out flows the spam, closed for whatever reason, off goes the spam. Of course spamming people isn't nice, regardless of being mobile or open, so the primary user interaction will be shutting off beacon spam, much like the only interaction I have with notifications on my phone is shutting off spammy apps so I don't have to ever see a notification again from that app. You get to sell one ad, once.