You aren't going to get anywhere close to what you can do in CDF via HTML5 and JavaScript without a truly ungodly amount of work... The same argument was being

You aren't going to get anywhere close to what you can do in CDF via HTML5 and JavaScript without a truly ungodly amount of work... The same argument was being made in favor of Flash a few years ago. Eventually it turns out that someone does that 'ungodly amount of work.' Why shouldn't it be Wolfram? He would have a leg up on everyone if he embraced the new standards and opened up the Mathematica walled garden a little.