These new applications include Edge Browser (free), Incognito ($1.99), WebMate: Tabbed Browser ($0.99) and Shaking Web ($1.99). But there's a catch. All of these browsers are based on Safari’s version of WebKit, which is built into the iPhone SDK, and merely enhance the functionality of the existing browser. In other words, this doesn’t necessarily mean Apple will open the gates to iPhone versions of completely separate third-party browsers, such as Firefox or Opera.
Regardless, the new apps do mark somewhat of a change in Apple’s position regarding duplication of functionality, and will hopefully represent a step ahead for the iPhone in becoming a more open platform for application developers.