Nomophobia, not a name of any physical disease or disorder, is a term for "mobile phone addiction". It is the fear of not being able to use the phone or its absence for some reason. Mobile phones are a part of everyday life now, whether it's for calling and texting or playing games and using apps. App development companies have learned to utilize this perfectly as the world has gone mobile and having everything in one place within the user's handheld device is a great thing! One question still stands, though, what is so great about mobile phones and why do people spend so much time on them?