The app provides faster search. The origin of search begins in the app instead of first waiting for the browser to load.
Check out this video to learn more about Google's Mobile App for Windows Mobile:
Optimising Digital Marketing Campaigns with Search, Social and Analytics
At SES London (9-11 Feb) you'll get an overview of the latest tools, tips, and tactics in Paid, Owned, Earned, Integrated Media and Business Intelligence to streamline your marketing campaigns in 2015. Register by 31 October to take advantage of Early Bird Rates.