I'm sure it's got its merits but the Sproutcore site does a horrible job explaining what it excels at.<p>For example, on the Demos and Sample Code page it has me install a ruby gem.<p><a href="http://www.sproutcore.com/demos/" rel="nofollow">http://www.sproutcore.com/demos/</a><p>What the hell? You lost my interest at ruby and the command line.