One must have noticed that the Official Apple Apps like Contacts and Mail open much faster than the 3rd party softwares that we install on the iPhone (3G or 1st Gen). Now this really puzzles us as the SDK is officially out.
Apple uses a screenshot of the last state of the application whenever you launch it. So the splash screen as it is known loads an image before the actual app is launched. Thus giving you a split second feel that the app loaded instantly.
Apple may be new to CellPhones, but it sure knows how to take the user experience beyond expectations… Cheers