phone1Check out the increasing appetite for mobile applications among U.S. online retailers.

Nearly three-quarters (74 percent) of online retailers either already have or are developing a mobile strategy and one out of every five has a fully implemented mobile strategy already in place, according to a study from Forrester Research and Shop.org, the National Retail Federation's digital division.

"It's imperative for online retailers to stay on top of what their customers want and these days it's all mobile all the time," Scott Silverman, Shop.org executive director, said in a statement. "Mobile commerce has tremendous potential and will no doubt grow to become a significant part of overall sales volume in years to come."

"It's definitely the buzzword in the industry at the moment," Daniel Latev, retailing research manager at Euromonitor International, said of mobile commerce.

Retail executives agree, saying at the Reuters Consumer and Retail Summit last week that they are taking the potential of this growth opportunity seriously at last.