So far i didn't found any info how to use this feature. First test with simple page with one image 640x640 was disaster, there was shown just part of image (half on width). So you need to prepare your webpage for iPhone 3G resolution (640x480).
And there was no way how to go past this screen (no button, nothing) - i need to force quit the app and relaunch it, then i saw standard UI of viewer.
Who designed this feature made imposible to test it properly - because this welcome screen is show just FIRST time when app is launched, i'll never see this welcome screen on my iPhone without complete restore of iPhone. Removing app and re-install don't help. We tested it now on few iPhones and we are running out of them now.
The iPhone welcome screen, which displays only the first time the app is launched, was inadvertently exposed to Pro customers. Enterprise publishers can use it to provide information about restoring purchases and so forth, but it requires the use of custom APIs to set up links. You can read more about the option here: