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Responsivator will provide a preview for many platforms. Just enter in your site's URL and it will show how it will look on most common platforms. It's super easy, and a lot less clunky. It's open source, so you can either go to the site http://dfcb.github.com/Responsivator/ or, if you prefer, you can run your own instance on your own server. It's a pretty cool tool. Hey, that rhymes! Anybody want a peanut? (Said as I pour out a little coffee in memory of Andre the Giant.)