Launch screen requirements
Unlike your app's icon, the launch screen only appears briefly, while your app is actually loading into the device's memory. This means that it isn't visible for very long. If it is seen for too long, you've already got problems. As such, your launch screen is probably not the best place to be displaying something overly intricate or fancy. The whole point of a launch screen is meant to cover up the time it takes to launch your app, and on iOS, to give the impression that your app loads much faster than it really does. On Android, many apps dispense with launch screens entirely. But due to the way the Cordova/PhoneGap apps initialize the underlying web view, a launch screen is something you'll still want to use.
Note
On Android, the system web view for your app tends to take a moment to initialize. During this time, your app may present an undesirable display (akin to the flash-of-unstyled-content that is sometimes present while using some...