WeFiApp is enabling neighbours to share their Wi-Fi connection and costs.
The Wi-Fis owner agrees to make his Wi-Fi available to his/her neighbour and setting a monthly asking price they want the neighbour to pay.
The neighbour in need of Wi-Fi will see the available network and the monthly cost via the app, with a press of a button will be able to connect to the Internet.
All done via PayPal.