"If developers get on board — at least one Mozilla bigwig has stated that they “want to attract hundreds of thousands of developers” — and lots of open web apps begin to appear, then Google can simply implement the same specification in Chrome, Microsoft can implement it in IE10, and Apple can implement it in Safari"
I don't think the author recognizes that that would be a successful outcome for Mozilla; it'd mean that the web truly is the platform, and developers would be able to create an app using that platform and make it available to users on all the mobile OSes. That's cool!
Although I'm pretty sure we'd also like the phones and OS to be successful, of course. :P