Mac OS Mountain Lion bringing a new version of Safari ?
If you were to see the video of the sneak peek of the mac os mountain lion, in the part where it explains share sheets, there is a picture of the website of the guggenheim museum on safari. As you can see there is no google search bar next to the address bar. The search bar is present in every version of safari including safari on iOS. The only logical explanation to the search bar being absent, is that apple is bringing out a new version of safari which will feature a new layout and make its debut in mac os mountain lion and iOS 6.