Google has recently updated their iphone app, they have changed the whole user interface added some useful gestures to make to more meaningful added all the great options that are found in web based google search.
"When browsing through search results or looking at a webpage, you can swipe down to see the search bar or change your settings. (…) We also included a new toolbar that will make it easier for you to filter your results. You can open this toolbar by swiping from left to right — either before you search or once you’ve got your results," as you can understand in the image below.
Secondly, they have made it easier to pick up searching where you left off. If you leave the app and come back later, you’ll be able either to start a new search right away (just tap in the search box to type, hit the microphone button to do a voice search or tap on the camera icon to use Google Goggles) or get back to exactly where you were by tapping on the lower part of the page.
Scroll through some snapshots below to check out the new changes in the user interface of new google iphone search app named as google mobile app in appstore.
Here was how the old iphone google search app looks like as shown in the snapshots below.