AirDrop - a function that I have been waiting for a long time in iOS, but I cannot use it

  In iOS 7 Was implemented AirDrop, a system that allows us to share files between terminals iPhone 5 or iPod Touch 5G without the slightest effort, at least in theory. In reality, so far I have not managed to transfer any files using this system, although I have tried the process with several terminals, but in none of the cases was the terminal found by AirDrop, although it was open and active for all users. Chatting with other users ai iOS 7 I found out that only a few managed to use the system to transfer files and only a few times, it being non-functional most of the time.

  I expected AirDrop because it allows the quick transfer of files via Wi-Fi between nearby iDevices, I was waiting for it because I have a utility for it, but unfortunately I can't use it. I'm curious how many of you managed to use AirDrop from iOS 7.