This is pair of (sample) application, which can be used to borrow ideas to write your own maps application. Basically this solution has 2 parts :

Desktop Application

• Uses Maps AJAX API to get data in c#.net
• Exports Data in to XML
• Plan is to port on Bing Maps + other map technologies (currently using Google maps api)
• See staticmaptest project in the solution

Mobile App (windows mobile 6)

• Loads Exported Direction Info Data to shows turn by turn Navigation.
• Mobile app never uses any maps api
• See PocketDashboard project in the solution

What You need to compile this code

• Visual studio 2005 or higher
• Windows Mobile 6 SDK

Screen Shots

Detail Of this Project is here

http://www.markandey.com/2010/01/hacking-google-maps-ajax-api-to-use-in.html