I saw a review of this JS implementation to server side stuff beating most of the other options available today.
Portuguese version Original(http://akitaonrails.com/2010/03/16/brincando-com-node-js-tornado-and-thin)
English Google Translated version
(http://translate.google.com.br/translate?js=n&prev=_t&hl=pt-BR&ie=UTF-8&layout=2&eotf=1&sl=pt&tl=en&u=http://akitaonrails.com/2010/03/16/brincando-com-node-js-tornado-and-thin)And it's JS, it's a very common language that almost everyone know a little bit.