High-end mobile applications remain vastly under-used by U.S. consumer, according to consulting giant Accenture, which released the results of its Dec. 2007 survey yesterday.

Accenture found that 88% of U.S. consumers never use mobile devices to watch videos, 84% don’t send mobile email and 79% don’t play mobile games. In general, there is a big difference between the applications and services that companies in the mobile field advertise, compared to what typical consumers actually use – that shows in financial results too.

As expected, people age 18 to 24 spend the most and use the most applications other than simple voice calling. That applies to services such as social networking as well, officials said.

The survey went to more than 5,000 people of all demographics.

“These survey results point to important missed business opportunities in the mobile handset and social networking arenas. Clearly, many consumers are not widely embracing higher end cell phone applications. And the vast majority of older Americans, in particular, are not inspired by the social networking phenomenon,” said Kumu Puri, of Accenture’s Electronics & High Tech practice.