According to Oprah Magazine, StumbleUpon is not only the most addictive website ever, it's also the "greatest thing ever invented." Well now you can have all this on your iPhone with the StumbleUpon app. The app will look familiar if you're one of StumbleUpon's almost 11 million members.
With an embedded browser, the StumbleUpon toolbar has thumbs up and thumbs down buttons along with a home button and random stumble option. In order to use the app you must have a registered account with StumbleUpon. What sets the iPhone app apart from the desktop version is a focus on mobile-web specific features and content.