Also, while they don't have a Windows Phone API I previously wrote a COM Windows Scripting API to use it via Chackra from an ASP.Net app.
I think it's even easier now that JS is a supported app language.
I think it's even easier now that JS is a supported app language.
With access to a Firebase SDK the only major additions the API needs to become a viable replacement for existing read-only client apps would be support for all the other lists apart from top stories (new, show, show new, ask, jobs, best, active) and more than 100 items for each. For apps that need write access I'd suggest keeping the current website on a separate subdomain until that is implemented into the API.