Stevey :

JavaScript is probably the most important language in the world today. Funny, huh? You'd think it would be Java or C++ or something. But I think it just might be JavaScript.
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The GWT is one, of course, but you'd have to be a pretty doggurn die-hard Java programmer to go that way. I'm sure it'll improve with time, but the biggest stumbling block, amusingly enough, is that it's not JavaScript. JavaScript is still King in the browser space, and ironically it's like programming to the "bare metal" compared to using a Java-to-JavaScript compiler. So JavaScript what the "real" web programmers prefer to use.

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Dreaming in Browser Swamp