iOS lets you define a startup image. When your visitors add your web site to their home screen, this image is displayed for a short time when the home screen link is clicked.
Now you can create this image with the help of the non-interactive API. Well, “this image” actually means “these 7 images”. And the HTML code is not trivial. Definitely not something you want to deal with a few hours before the release of your next web project.
Oh, and if you think the photo used to illustrate this post is below standards: just try to take a screenshot of an actual startup image. The image appears for a second, at most. It is awfully hard! 😉