Critical Mass Cotcha

My bike has a headlight with a huge battery pack and a DC barrel plug. My friend Bill Swearingen had an awesome idea to take an ESP8266, add a li-po battery and a charger, and load it with a firmware claiming to be a free internet hotspot. When people connect, their phones suggest clicking here to sign in, at which point they are directed to an advertisement to SecKC, the local monthly security meetup.

By replacing the filesystem image, the following is now displayed on any phones attempting to connect to my bicycle looking for internet: