This document discusses the importance of user experience in software. It notes that over 60% of total cost of ownership over five years is from people costs like staffing, downtime, and training. It argues that user interfaces should focus on the user and prioritize compelling experiences. Silverlight is highlighted as a tool that can provide consistent cross-platform experiences with media and animation while connecting to data and services. The document advocates that Microsoft's platforms and tools allow for powerful yet accessible user interfaces.