Hi everyone,
Packt has generously allowed me to publish one of my chapters from the book free for your browsing. Chapter 5 is quite an interesting chapter - it details how you can use the capabilities of the mobile device to send SMS messages, e-mails, infrared and Bluetooth packets using the .NET Compact Framework. It also covers a bit on how you can integrate to the Windows Mobile Contacts and Tasks area.
Take a look at Chapter 5 here:
https://www.packtpub.com/sites/default/files/0102-chapter-5-building-integrated-services.pdf