The Mobile Marketing Association and Luth Research have published research that shows about a fifth of US adult mobile phone owners have used their handsets for shopping (mobile commerce or 'm-commerce') in the last month.
It's defining mobile commerce as "the one- or two-way exchange of value facilitated by a mobile consumer electronic device, which is enabled by wireless technologies and communication networks."
The new survey found that 17% of respondents used their mobile phone to purchase applications, ringtones and other digital content. 6% used their phone to receive coupons or discounts and 6% used their mobile phone to purchase physical goods or non-mobile content/services.