I think it isn't so much about the technology lagging behind, but more about understanding on how to best use the web technologies on mobile, and probably libra

I think it isn't so much about the technology lagging behind, but more about understanding on how to best use the web technologies on mobile, and probably libraries packaging this understanding into easy to use format. Think of the "AJAX boom" of around 2005. XmlHttpRequest had been around since late 90s, but only then mainstream developers understood the potential for building more responsive web applications.