The document provides an overview of the mobile marketing industry, highlighting key statistics about mobile device usage, subscribers, and advertising spending. It notes that mobile internet and smartphone usage is growing rapidly worldwide, with over 5 billion mobile subscribers globally. The mobile market is being driven by increased 3G connectivity and unlimited data plans. Mobile advertising spending is estimated at $1.4-$7.5 billion annually and is forecast for rapid growth, with SMS and display ads being commonly used mobile marketing tactics.