This map features a huge iPhone 6 which is semi-functional. It's obviously extremely limited compared to a smartphone in real life, but you can actually turn it on and switch between the few different apps available on the phone. It's definitely a mind-blowing creation and it's the first time I see one created specifically for Minecraft Pocket Edition.
Creator: Pastimeboy, Twitter Account
The iPhone is in sleep mode by default. Press on the "Home" button to turn it on. To press the button you will simply have to fly to the button.
As soon as you've done that the start screen will appear. Here you can view the different apps you've installed on the iPhone.
Some of the apps which work are Facebook, Google and Flappy Bird. Fly to the app which you want to open. At this point you can't really do anything in the apps (as far as I've been able to test it at least).
Important: Make sure that your render distance is set to max!