The document provides an analysis of mobile marketing and mobile commerce (m-commerce) in Brazil based on online surveys and discussions. It finds that while mobile devices are widely used to research products and prices, most consumers still prefer completing purchases on a PC due to perceptions of better interfaces, multi-tab browsing, and security. Mobile advertising is most effective when it provides interesting, personalized content, but users strongly dislike unauthorized ads. Top products for m-commerce are tickets, virtual goods, and food delivery, though safety concerns still present a barrier compared to online shopping via PC.