According to research done by the Yankee Group, the majority of retailers who are looking to expand their services to mobile devices are looking to make their products available via the iPhone, before other devices.

The research indicates that iPhone users are almost three times as likely to shop using their mobile phone than the general smart phone user population, according to InternetRetailer.com.

More than twice as many iPhone users have shopped online via their telephone, while nine percent of them have used their iPhone to redeem online coupons, compared to the four percent of those who use other smartphones.

According to the news source, Carl Howe, director of Yankee Group and author of the report, wrote in the report that the iPhone will gain significant popularity on the online market. "Apple's iPhone 4 launch on June 24 only confirmed this view. In the first three days of sales, Apple sold 1.7 million iPhones, accounting for more than $1 billion in revenue."

Shopping online is an effective way to save money .online, whether it's done through a computer or mobile device. Those who are shopping online should be sure to take extra measures to protect their personal information, according to Yahoo.