Google have just clicked the GO button on Instant Previews. Instant Previews provides a fast and interactive way to evaluate search results. Google Instant Previews is compatible with mobile for Android (2.2 and above) and iOS (4.0 and above) devices.
Similar to the desktop version, Instant Previews allows a user to visually compare search results from a webpage of snapshots, making it easier to choose the right result faster. In order to use Instant Previews on your Android or iOS-powered device, do a search on Google and tap on the magnifying glass next to any search result.
A side-by-side comparison view of the webpage previews for the first page of search results will appear, once you've found a result you like, tap the preview to go directly to the side.