He doesn't say it will be ubiquitous in that timeframe. You'd have to be pretty crazy to think that. He means it will arrive. Which is correct. The thing is, javascript is what's available in all devices. And it's a pretty nice language.
it's also showing up in other things. I believe KDE is using it as the primary scripting language for their stuff. Apple has dipped it's toe in that water with the dashboard widgets. etc
