Rails in Javascript?

I don't even know if the question makes sense. If this report that Google's ported Rails to Javascript is true, this could be very interesting..

In an effort to increase developer productivity at Google, Steve tried to convince the company to adopt Rails (and consequently Ruby) as a programming language. When that fell on deaf ears (Google really does not want to increase the number of languages that must be supported by their infrastructure), Steve decided to do what any other frustrated programmer would do: he ported Rails to JavaScript. Line by line.