If we all enabled our guest WiFi, added this string, and a strong password… no need to actually use the guest network just use it as an advertising tool.
Ofcourse it exists. Was thinking about carrying around a Raspberry Pi with portable charger. Using it to broadcast an said.
Someone has already built this.
Adverpising
Could also serve webpages from the device. Pop it in your backpack. Checking the access logs at the end of the day could be interesting also.
Also… think of places with poor WiFi, no network connection… long dark spots on a train journey. You could have an adverpising website for people to browse while board.
