160Characters Association reports that only 17% of those with a mobile use their phone for anything other than to make calls or send text messages on a daily basis, avoiding the more complex features available according to research from Mobeon.

The NOP Omnibus survey interviewed 999 nationally representative adults in Great Britain aged 15+ via telephone between 26-28 August, 2005 was conducted on behalf of Stockholm based mobile messaging company Mobeon. It found that, on a daily basis, advanced services such as call diverts, picture galleries, calendars, MMS, email or web access are left untouched by all but 17% of mobile users.

So we found out what is the smartphone killer application: voice calls. Surprise!