Dart is a language developed at Google whose goal is "ultimately to replace JavaScript as the lingua franca of web development on the open web platform".
But after three years of being released, and despite being powerful, there aren't strong enough signs of adoption. It received a share of criticism from the industry[1], including the following comment from Mozilla's previous CEO Brendan Eich, who developed the Javascript language:
"I guarantee you that Apple and Microsoft (and Opera and Mozilla, but the first two are enough) will never embed the Dart VM."
Lukewarm adoption is always understandable of new things but this seems political. You'd hope big cos would give a fair shot to a better web and yet you get the semblance of a second Cold War.
If the big guys control the web and not even them can fix it, what would it take then to replace Javascript?
[1] http://en.wikipedia.org/wiki/Dart_(programming_language)#Criticism