What I don't like is WebView distributed as a "native app". It's not native app and it's not something I want to install, don't cheat me. Webpages should stay in browser. I expect native app to be written with Objective C (OS X/iOS user here), having very low memory usage, fast startup and offline usage. Also I expect as much integration with the system, as possible, native controls (not that buggy emulation without…
google-chrome --app="http://app.com"
And get a frameless window.Firefox used to have something like this, but it doesn't appear to work anymore. You can do
firefox -chrome "file:///some/local/file.html"
But obviously that's not quite the same, and I believe is limited to local files.