Watching the Google IO keynote, I couldn't help noticing that their new instant apps could be accomplished in open webtools if they would have focused on browse

Watching the Google IO keynote, I couldn't help noticing that their new instant apps could be accomplished in open webtools if they would have focused on browser integrations rather than native apps. I hope this doesn't mean native apps are shutting the door on the original idea of pure webapps ( remember that iPhone 1 keynote? ). I think it would take a major new platform doing exclusive html5/css3/js first and only to shift the paradigm. Then, follow that up with mobile browser improvements to make payments, contacts, hardware integrations better and we'd be on our way. Anyone know of a good app that is web only? Unfortunately, I think as native apps continue to dominate, there will be less incentive to build out mobile browser integration with open web platforms.