They are still trying to pull it off and hopefully the resources of google will help them. The problem vark faces is that they have to build up a large and active community of people willing to answer questions.

I was an early user and I still make myself available for questions all the time. But I'd say probably 3 out of 5 times I get a question, I just don't have the time to respond with anything useful. And after a certain amount of time, you're past the "real-time" threshold so there's no point in responding.

But when vark works, it really works and it is awesome.