Google Testing Search Results Live as you Type
Google has been testing a new search feature that displays search results live as you type. For example if you are typing a two word search query once you have finished typing the first word the results for that word have already been displayed in the search results.
At present these results are not available to everyone and are just under test to a small proportion of Google users. See below for a video of live as you type search results from Rob Ousbey