I saw this just before xmas and thought it had the makings of a great demo and solution for your customers.
"Now you can help your customers manage their important sales, service, and marketing information from Windows Mobile, Smartphone, and HTML 4.0 compatible devices. Learn about CRM Mobile Express for Microsoft Dynamics CRM and mobile emulators that help you demonstrate the solution to your customers and prospects."
So you can access Microsoft CRM from almost any mobile device.
"CRM Mobile Express for Microsoft Dynamics CRM 3.0 is a shared-source initiative sponsored by Microsoft that offers a lightweight, mobile browser client for viewing and editing data in Microsoft Dynamics CRM 3.0. CRM Mobile Express for Microsoft Dynamics CRM 3.0 works with any web-enabled phone or device. "
Help your customers deliver the power of Microsoft CRM to their mobile workforce with ease. Source code for CRM Mobile Express is available under a shared source licensing agreement. You can modify the source to fit the needs of your customers. Developers can use Visual Studio.net 2005 to extend and modify both applications as they see fit.
Download the solution files and application source code for CRM Mobile Express for Microsoft Dynamics CRM 3.0.
CRM Mobile Express for Microsoft CRM includes