If you've already signed up to Google's experimental field trials, you might have started to notice people you know appearing within search queries. Expanding on shipping and flight results offered previously, Google's pulling that information from your Gmail account, meaning that you'll be able to poll for contact numbers, addresses (and more) through the search box. Of course, only you will be able to see the results and the beta feature can even link up to voice search. It currently supports all of your Gmail contacts, while Google+ connections are in the pipeline for future field tests. You can sign up to the trials at the second link below.