The article misses the point. The browser is a document viewer, not an application delivery platform. Back in 2005 we all thought that web-based applications were going to take the world by storm, but now that we have slick application stores on all major platforms, this isn’t the case. If you need functionality like you describe, ship a native application via an app store. It’s a much better experience than web deve…
A side comment would be that you can make your webapp perform remarkably well on mobile, with things like HW accelerated transitions, local storage, etc...