1. The document discusses how mobile technology is changing retail by "greasing the purchasing funnel" and allowing shopping to occur anywhere through mobile commerce. 2. It describes how retailers need to adopt a modal rather than linear approach since customers are constantly accessing information through their mobile devices in different contexts. 3. The key aspects of retail that mobile impacts are the traditional "4 P's" of marketing (place, price, product, and promotion) as well as payment and customer service at the point of sale.