ESRI released version 1.1 of ArcGIS for iOS iPhone app, on 6 August 2010. It is mostly a bug-fix and performance improvement release, though a few minor feature enhancements are included as well.
From the release notes:
- Includes many stability and performance improvements when interacting with maps
- Tap on a query result to navigate and view it in the map
- Enjoy the convenience of registering your new account directly from within the application
- Addresses accuracy issues when measuring distances and areas
- Tap a URL or phone number to visit web site or make a call
