Mobile devices became an integral part of our civilization. Cells accompany us practically 24/7. We treat them as our personal assistants, helping us to go through the day from a to izzard – they organize tasks, communicate with others, navigate through cities, and entertain us. They’re relatively cheap, available to all of us and user-friendly at the same time. 10 years ago, when Apple launched their first smartphone, people couldn’t predict how popular they will become – at first they were only expensive fads.