I don't think the parent meant commercial use-cases, more like what can you actually do? Or what is a concrete use-case that you are testing it for? Or what is one goal for it to do in the future?
One thing that's fascinated me for a while has been the concept of rolling your own hardware that can plug directly into the web. (I know Chrome has had WebUSB and WebBluetooth enabled for some years now.)
And "plug directly into the web" how exactly? Elaborate. Do you mean using them locally, externally, magically? Something else?
The project seems decently interesting, but like a lot of other people, I'm seeing a lot of text but not really clear answers to very valid questions.