A survey shows that Internet users would rather shop using a mobile device than a personal computer or laptop, Mobile Commerce Daily reported.

InMobi surveyed 15,000 mobile users in 14 countries about their shopping habits. Responses indicated that mobile shopping is already commonplace among a significant number of Americans, with 74 million consumers in the United States shopping on their cellphones.

“The really key finding is that mobile is going to cannibalize PC consumption,” said James Lamberti, vice president of global research and marketing at InMobi. “This will have a big impact on marketers as they begin to leverage mobile in a way they aren’t doing today.”

InMobi is a global mobile advertising network.

Among consumers already using the mobile Internet, 49 percent prefer shopping in stores and 35 percent are comfortable shopping with their mobile devices; only 16 percent prefer shopping from their PC or laptop, according to the study.

Results also point to significant growth in the U.S. mobile shopping market as more consumers purchase smartphones and adopt the mobile Internet.

InMobi predicts U.S. mobile shopping sales volume will reach $9 billion in 2011. Sales totaled $2.4 billion in 2010 and $1.2 billion in 2009, Mobile Commerce Daily said.

The most popular purchases from mobile devices in the United States are mobile content and games, with 42 percent of respondents having made a purchase in the category using a device.

Nineteen percent of consumers said they buy electronics via mobile phones. Apparel accounted for 15 percent, entertainment tickets were at 13 percent and travel at 12 percent.

In addition, 63 percent of respondents said their mobile shopping experience was positive.