Amazon ported chromium browser to kindle fire and allowing developers to submit webapps. It will act like native app. User can download webapps from app store just like native apps. Webapps will use chromium instead of android browser. http://developer.amazon.com/webapps

New chrome beta on Android allows webapps to be added to your home screen like iOS, but on android it is more usable and functional than iOS.

Try my app on chrome beta on Android: http://hn.premii.com/

I don't think HTML5 and webapps are going away.