Looks like another desktop Safari 4 Beta feature has found its way into the iPhone 3.0 version of the browser. Now, when you go to a site with an enhanced security certificate, the text on top of the browser turns green (like the green bar, we get it!), with little green lock icon beside it, and the name of the certificate's trusted organization. For example, the above screenshots show how Apple's order status page looks on iPhone 2.2.1 (top right) and iPhone 3.0.
What does this mean for users? In an age of increased phishing attacks, where bad sites try to trick you into thinking they're your bank or shop and steak your login or credit card info, this is one more visual cue in your assessment process for determining if you can trust that the website is what it says it is.
Come iPhone 3.0, look for the green text on top of Safari and carefully check to make sure the company it identifies is the one you want to be dealing with.