Many mobile applications today include transitions. On iOS, the slide transition is very common. If you are an iOS user, you are likely using the mail app on your device. The iOS mail application is a good example of a slide transition. Whenever the user clicks on an email in their inbox, a slide transition is invoked and the new screen with the selected email slides in.
With Delphi for iOS, you can easily enable the same slide transition in your listbox. And all it takes is a couple of lines...