Regional Director and CRM Guru David Yack has just released his latest book, CRM As A Rapid Development Platform. With this book, CRM is not just a CRM application anymore. With its extensive customization features and ability to use external programs, and for external programs to access CRM data, Microsoft Dynamics makes a great platform to develop all manner of business applications.
David has just blogged it on the CRM Team blog. A direct link to his book, and the opportunity to purchase it, can be found at http://www.thecrmbook.com.
If you are a developer, you need this book!