[edit] Personally, I already knew I had clicked a link on HN. All the popup banner did was distract me from the content...well ok, it annoyed me a bit too.
This fulfills a need that I have had for a long long time. No more resource bundles which nobody wants to translate.
Cool stuff! Would be cool to have that for native mobile as well
But I still have to implement a ton of stuff in the backend?
No, it is a service, it will manage everything for you, just have to include the javascript.