Google has plans to bring their Instant search engine to mobile devices.
(http://i54.tinypic.com/243ka3s.jpg)
Google Instant has just launched and it is available on all modern devices in some countries.
We were able to access it here in India easily without using any proxy. So it might work for you all as well.
Google has tweeted that the same search engine feature would soon be available on their mobile search service.
Of course, it would be restricted to modern devices. Apple iOS, Google Android and Palm webOS are expected to be supported as they use a webkit based web browser. Not sure about Windows Phone 7 right now.