[ChuckMcM]

I figured it to be a publicity stunt, the bins are selling advertising, this gets their description and capabilities into the press.

But it twigged an interesting idea (probably impractical) of a personal version of this device. It could give just watch for mac addresses (or bluetooth addresses) that got into range or stayed in range. If someone was following you in a car it might show up as continued presence of an unrecognized cell phone MAC address.

If done right you could do "recognition" with Glass using cellphone MAC rather than facial. Not sure if that counts in the rules, but people do inadvertently carry around an ID tag with them that is broadcasting their identity to anything that knows how to ask for it.

[x0x0]

Those cost $57.

http://mobile.nytimes.com/blogs/bits/2013/08/02/a-cheap-spyi...

[ChuckMcM]

Yup pretty much, although for mobility reasons you'd want it to be battery powered. I was thinking more like re-purposing a late model Android handset. Root it, put a kernel on it which was designed for surveillance rather than telephony, have it spool to it's microSD drive and get analyzed each evening.