The application is both the wallet and the connection handler (a WiFi Manager on steroid). It also contains an interface to the router so users can configure the Service directly from the app without having to log in to their router via their browser.
The goal is to make it as seamless as possible for users. As such, it will stay as close as possible to the built-in WiFi Manager, while providing all the information users need to know in one location.

The Service is currently being implemented on the LEDE platform for the beta release. A standard API will allow manufacturers to build support into their devices with minimal effort.

Support for smartphone hotspot might come down the road but is not part of the initial release, the fact that a smartphone is not at a fixed location makes it less valuable for users (out of range issues, can't rely on it being at the same location tomorrow, etc...).