Reenable pinch-to-zoom on obnoxious sites that disable it, like The New Yorker. Convert to a bookmarklet and install via http://mrcoles.com/bookmarklet/ .

viewportfix.js

var m=document.getElementsByTagName('meta');

for(var i=0; i<m.length; i++) {
    if (m[i].name == 'viewport') {
        if (m[i].content.indexOf('user-scalable=0') != -1 || m[i].content.indexOf('user-scalable=no') != -1) {
            m[i].content = 'width=device-width, initial-scale=1.0, minimum-scale=0.5, maximum-scale=4.0, user-scalable=1';
            alert('Found & fixed.');
        }
    }
}