There's been a quite a bit of controversy over using homeless people as wireless hotspots since the New York-based advertising agency Bartle, Bogle and Hegarty (BBH) deployed them at the South by Southwest festival. At first glance, it seems like a two-birds/one stone idea: solving both the real-world problem of employing the homeless, as well as the first-world problem of never finding a darned hotspot when you need one. But even a Wi-fi craving tech junkie like me can see that this isn't the solution. "Homeless hotspots" are a bad idea for one very important reason: