I found this free app called cooliris. Which lets you browse Google images site in a really cool way. You can put a search term and do a search and it will bring you only the pictures in a beautiful way with all the iphone touch controls like pinch and flick to see next image.
But once you find a nice image you can only email it. You can’t set it as a wallpaper. So here is a simple trick to make this app really useful. Once you find the picture you want, tap it once and it will show a small preview, tap it once more and it will fill the iphone screen. Once it does just take a screenshot by pressing iphone home button and power button at once.
Now just go to your photos on iphone and you will find the photo that you searched for there and you can set as a wall paper, email or even blog it from there.
Very nice app, and what’s the first things I search for girls of course.
Oh by the way it can also search flickr, smugmug, devianart, yahoo etc.