The ArcGIS application for iPhone, iPad, and iPod touch lets you create and update GIS data in the field, discover, open and explore maps, find places and addresses, and query map layers and data that are hosted either at ArcGIS Online or your corporate ArcGIS Server.
As a developer, you can have your users use the application to view your own custom maps.
For more information about the application, see:
If you have questions about the application, you can email arcgis4iphone@esri.com or check the ArcGIS for iOS Apps forum.
If you plan to use the ArcGIS application with your own ArcGIS Server, see maps.pdf to learn more about the structure of maps on iOS devices and how you can create and upload maps to your ArcGIS Server.