I don't know about the US, but where I live speed camera are relatively large bright colored boxes with reflective stripes on the side of the road, with mandatory "speed camera ahead" warnings.
Most of them are empty but people unfamliar with the place will usually slow down.
This, windows phone works well as a phone, but the lack of quality apps and crappy browser that chokes/crashes on avertising make the "smart" part a complete fail.
Hmm, reducing the need for long lasting and easily recyclable paper by replacing it with mostly-plastic stuff (including packaging) that becomes obsolete in less than a decade?
I've seen a drone scanning over a large corn field, dropping sensors seems silly when you can outfit infrared tempature sensors/humidity sensors/etc on a drone.
I don't understand what the fuss is all about, last time I tried AdNauseum it barely detected and clicked very few Ads, maybe one or two on really ad-heavy popular websites, and many issues on github confirm that its detector is quite finicky.
I had couple of games installed on a symbian phone (200Mhz ARM) using "AR" almost a decade ago (a table tennis one and a virus catcher thingy), they were a bit laggy but that was because without onboard sensors they had to track movement using only the camera and at the same time push video plus overlay to the display.