With iPhone Simulator, it's possible to access the clock, calculator, notepad and iOS system preferences.
With great quality graphics, this app lets you test some of the iPhone's popular feature. You can play around with the interface, as well as try out default applications that come standard in the iPhone. In some ways, it is quite similar to the popular iPad emulator, iPadian. This small program is written in Flash and lets you interact with a virtual iPhone on your desktop.