Esri has released an updated version of its ArcGIS for Apple iPhone, iPad, or iPod touch devices.

In addition to using the app to discover and explore maps, find places and addresses, and query map layers and data, users can now collect and update geographic information system (GIS) information in the field using the app.

Users of the updated ArcGIS app can use onboard GPS to collect and update GIS data, attach photos and movies to collected data, and use the map to get information about a location.

An API is also available that lets developers and Esri partners create focused, spatially-enabled applications for devices. These custom apps can be deployed within an enterprise or to the public via the App Store.