I'm starting to develop an application for iPad which should enable the users to go to the field and acquire georeferenced information. The idea is to enable acquisition of points and polygons, and the filling of a set of attributes for the geometry. Also important is the ability to connect to externals geo-referenced databases, such as a PostGIS one.
Ideally, I would want to be somewhat similar to the ArcGIS for iOS application, which has a good user interface.
Can you guys point me to other applications similar to what I am developing? I already know the following ones:
Possibly you can point me to something with similar functionality to the ArcGis for iOS?
Interesting programming frameworks to achieve the desired functionality on iOS?