Visit your favorite sites with one touch.Download the new Google Chrome for your iPhone and iPad.Gestures: create a personal symbol to access the websites you use the most.Personally though, I prefer Dolphin as my favorite. There are some rumors that Firefox will eventually release an iOS version. It's only the stuff around the rendering engine that will look different. You could search for "browser" on the app store, but realize that most of the applications that you find will still be using the same rendering engine that Apple developed. Here's a review of the app which may help.
If you want an interface which looks like Chrome, you might like Diigo Browser. If you want to watch Flash videos on your iPad, try out Skyfire. Opera Mini and Murcury Web Browser (quite similar to Desktop Safari) are another couple of nice alternatives to Mobile Safari, and Atomic Web Browser is slightly better than Safari, but doesn't have many features. It's very similar to Chrome, and you can download extensions for it. Chrome and Firefox haven't been developed for iOS yet, but you could try Dolphin Browser.