An iPhone 4 running a “test version” of iOS has been discovered by Vietnamese site tinhte.vn, and reveals a new Expose-like multitasking UI and a revamped Spotlight search function. Two videos published by the site demonstrate these new features, along with some pretty interesting hardware in the form a white, 64GB iPhone 4.
In this test version of iOS, double-tapping the home button displays your multitasking applications in a manner similar to that of Expose on your Mac. Instead of icons for the applications you have running – like you currently see in iOS 4 – you see a preview window for each application.