All in all, jsconf clearly seemed to be celebrating the possibilities ahead and the power of the language to be mutated into virtually any form. More than once I overhead someone say that they were sold on coffeescript and would try it for their next project.
This impression of a community happy with the state of their chosen tool was re-enforced throughout the next day at nodeconf. One talk on Track A was "Mozilla Person, Secret Talk". When I suggested that it would likely be about Mozilla's efforts to create node on top of spidermonkey one of the guys at our table said that if that was the case, he would have to go and check out Track B. As the Mozilla person turned out to be Brendan, our tablemate did leave. The talk itself was briefly about V8Monkey and SpiderNode, the two abstraction layers Mozilla is building to create a node clone, and largely a re-hash of Mozilla's JS.Next talk. The post talk questions seemed generally uninterested in JS.Next and were mostly different forms of "what do we have to gain from SpiderNode."