Is it possible to integrate Bing maps into a native iPhone application?
Bing map now has a native SDK for iOS. Check this: http://www.bing.com/community/site_blogs/b/maps/archive/2011/05/05/new-bing-maps-ios-sdk.aspx
It is possible to use Bing Map geodata instead of google map:
Use Bing's REST or SOAP webservice: If I understand it correct you can even build your own map out of the Imagery Service:
To get started you need to get the appID and then in case you use SOAP get the wsdl: http://msdn.microsoft.com/en-us/library/cc980844.aspx
Good luck!
This tutorial should help you when you have questions with the generation from a wsdl: http://brismith66.blogspot.com/2010/05/iphone-development-accesing-soap.html
We changed from Google Maps to Bing Maps using the Bing Maps API from InKnowledge after running into this problem: I'm having trouble getting accurate GPS locations from the Google Maps API for use on Android.
It is still a little immature but it worked for us.
来源：https://stackoverflow.com/questions/3519057/bing-map-integration-into-iphone-application