"87% of mobile users expect sites to load at least as fast, or faster than on their desktop." http://www.strangeloopnetworks.com/web-performance-infographics/
Remote Preview [+] Free! [-] Loads page into iframe [-] Requires user to type url in page [+] Central place to change url to load into iframe after initial set-up bit.ly/remotepreview
Adobe Edge Inspect [-] Displays site in a WebView [+] Supports live reload [+] Extension to load any page you view in Chrome [-] Can’t account for localhost (i.e. switch to ip addr. of machine on local network) [+] Remote Inspect via Weinre bit.ly/edgeinspect
Grunt + LiveReload [+] Free! [+] Easily see how each change you save looks across devices [+] Works with any modern mobile browser [-] Requires you to use Grunt for your build process bit.ly/gruntsync
Emmet LiveStyle [+] Free! [+] Works with Chrome, Safari and Sublime Text [+] Cross-platform [-] Requires you to install a package or extension livestyle.emmet.io
Ghostlab [+] Creates server to folder contents [+] Syncs scrolls, clicks and reloads [-] Needs typing into browser on each device [+] Allows to match up scrolling and input [-] OS X Only [+] Debugging via Weinre bit.ly/ghostapp
generator-mobile • Scaffold support for Bootstrap 3, TopCoat, Zurb Foundation and Pure • Generates responsive images for srcset • Generates screenshots of your site at different viewport sizes • Uses BrowserStack for cloud device testing • Includes FastClick to avoid iOS touch delays • Includes boilerplate for FullScreen API • Includes only the Modernizr feature detects your projects uses • Converts images to WebP • Includes a polyfill for async. localStorage
bit.ly/mobitest Returns total page load times, individual request headers and timings from WebPageTest using default browsers in iOS/Android/BB MobiTest