When Windows 8 is released later in 2012, users will expect to be able to launch a Windows 8 Metro app quickly and with little to no lag time once it is clicked on by a mouse or touched by a finger. In the
newest post on the Windows 8 app developer blog site, Microsoft gives Metro app creators some tips on how to code their apps to launch quickly for users.
The highly technical blog post talks about the splash screen for Metro apps: Microsoft says:
When users launch an app, they are immediately greeted by the splash screen. Every Metro style app has a splash screen, which consists of a 620x300 image and solid background color. Windows presents the splash screen on your behalf in order to welcome users while your app is activated. The activated event is received by all apps on launch, and gives your app the ability to perform any initialization work needed to present its initial UI. This might include reading basic settings, determining what page to navigate to, and/or identifying whether the app was activated for one of the various contracts.