Both of them are an excellent read for the Mobile Developers.
Application Architecture Guide for Mobile Applications
Chapter 19 focuses on Mobile.
Building Graphically Advanced Applications with the .NET Compact Framework 3.5
Giorgio, along with the support of Marco Bodoira, Embedded Consultant at BEPS Engineering, built a sample solution to show how to use the .NET Compact Framework 3.5 and Windows Mobile’s APIs to create “graphically advanced” applications.