Gears didn't provide users anything special, that's why it never caught on. But in this case, it provides users with a better web browsing experience. Our site doesn't support IE6 at all, in fact we just send those users to a web page saying that we'll support you guys in the "near" future. We could use their meta tag if the users are using IE6 and prompt them to install the Google plugin so that they could still use our website using IE6.