Users will appreciate your Windows Phone applications better if they perform well. You can benefit from lessons learned over the last years to optimize the performance of your own Windows Phone apps. You can also benefit from understanding the Windows Phone performance analysis tools to find and solve performance bottlenecks in existing applications. In this sample-filled session, learn how to create responsive Microsoft Silverlight applications for Windows Phone. Learn about common performance bottlenecks, with a focus on how to optimize startup and reaction time. Also, learn which controls are more efficient than others and why background processing is important in certain application scenarios. Finally, learn what additional possibilities you have to make your applications run snappy, not only on 512-MB Devices but also on 256-MB Devices.