The document discusses mobile traffic growth and smartphone usage as observed by Ericsson. It notes that mobile data traffic doubled from Q2 2010 to Q2 2011, growing 8% between Q1 and Q2 2011. The document also examines factors that impact weekly smartphone usage, finding that new Android and iPhone models have 50-75% of users generating over 1MB of data per day, while older or cheaper models and Blackberries have much lower percentages, ranging from 5-55% depending on location and model.