The mobile phone industry is considering introducing cinema-style classifications for mobile phone content, to prevent children using the latest internet-enabled handsets to access websites that contain unsuitable material.Increasingly, children are using mobile phones to access the internet and download content, raising concerns about what they can view. More than half of nine-year-olds and 95% of 15-year-olds already have a mobile phone.
http://www.guardian.co.uk/business/2008/aug/12/telecoms.internetphonesbroadband