This document provides information on Windows Phone design principles and capabilities including:
- Notification types like toast, tile, and raw notifications.
- The push notification registration process that allows apps to receive notifications from cloud services.
- Features like being a lock screen provider, using launchers to access device capabilities, and new maps and location APIs.
- Voice interaction capabilities in Windows Phone 8.
- Monetization strategies for apps like offering customizable paid options, free baseline experiences to attract users, and upselling users within the app.