A meta-platform can only be used and consumed by using another platform and in most cases it is not a purely first-class citizen on those platforms: iOS and Android; Windows and Linux. Yes, HTML with CSS and JavaScript have all been used as tools for creating apps that are ‘native’ and ‘one’ with the underlying hardware (ChromeOS and FirefoxOS both spring to mind) but fundamentally the way we consume the web is on the back of other platforms.
view source