Ars Technica:

Google’s search app for iOS is about to become more Siri-like. The app, which already allows users to enter search terms via voice, will soon gain the ability to better understand your intent—that is, what you actually mean with all those extraneous words coming out of your mouth. Google announced on Wednesday that the feature will be available “soon” for iPhone and iPad.

Big advantage of this Google “version” is that it will be available on the iPhone 4.