I disagree; web apps are just warming up. Native apps are still the go-to for a seamless experience, but I think that will change. As devices develop greater fragmentation continues (now seeping into the iOS echo system by the looks of it) apps will need to get better at being responsive. Web apps have already figured out a lot of the challenges surrounding responsive design, and will continue to do so. Once devices become powerful enough that there's no significant difference between web and mobile things will change dramatically. I see Google being the next to adopt native HTML5 and JS (after Microsoft's lesser known adoption in Windows Phone and Windows 8). Google's support for native web apps will put pressure on Apple and they'll go the same way.