The Herald story http://www.nzherald.co.nz/technology/news/article.cfm?c_id=5&objectid=10786003 says
"Two in three mobile users are terrified of being without their phone, a study has shown.Researchers found the number suffering from "nomophobia" - or a fear of being separated from their mobile - had risen from 53 to 66 per cent in the past four years.
Young adults suffer the most, according to the study of 1,000 employees. Among those aged 18 to 24, 77 per cent were nomophobic"
I would have to say I am borderline, working for many years in the emergency services has made me paranoid about all the things that can go wrong and how important communication is in bad situations.
So honestly, could you last a week, or even a day without your mobile phone?