SproutCore, for those who don't know, is an HTML5/JS application framework that works mostly on the client side. I've been playing around with it for the past w

SproutCore, for those who don't know, is an HTML5/JS application framework that works mostly on the client side. I've been playing around with it for the past week or so. It can do some really cool things, and works a lot more like desktop GUI toolkits than most web app frameworks. (Both in terms of how it works, and in terms of how it performs.) I've been told it's much easier to learn if you know Cocoa, but I don't, so I can't comment on that.