Google Instant Search on mobile, so we didn't expect much when Google's Instant Previews invaded the smartphone realm as well. You know what? They're actually surprisingly useful. Instead of trying to cram additional information into Google's already-crowded mobile website, Instant Previews adds a little magnifying glass next to most every result instead, and clicking on the magnifier brings up a series of cached thumbnails of each page that you can scroll through in portrait or landscape modes. It's a very visual way of finding what you're looking for, and more importantly, it's quick even over 3G, saving time and mobile bandwidth that would otherwise be spent clicking through links one by one. Rather than decipher that long-winded explanation, though, why don't you try it out for yourself or watch our video demonstration after the break?