Recently WebMapSolutions launched GeoMobile for ArcGIS; a free ArcGIS mobile viewer. The app is highly customizable, and allows analysis and visualization of spatial data in ArcGIS. GeoMobile for ArcGIS includes:

1. The application reads a config file, hosted on any Web server, allowing users to add their own layers.
2. Viewer loads dynamic, tiled and feature ArcGIS layers.
3. Routing Widget included.
4. Query Widget included
5. Geocoder Widget included.
6. Measure Widget included.
7. Layer Widget included
8. Overview Widget included
9. Geolocator included

The following video in the link below shows a demo of GeoMobile for ArcGIS running on the IPad:

IPad GeoMobile for ArcGIS

This new release is available in the Apple and Android stores from these links:

Free Mobile ArcGIS Viewer in Apple Store

Free Mobile ArcGIS Viewer in Android Market

Offline Mobile ArcGIS

Offline GIS is an important mobile app requirement. The ability to store and access spatial data where Wi-Fi is not available. The video in the link below shows an app being used in online and offline mode. You will see both base map tiles and a shapefile stored on the mobile device and loaded in offline mode:

Offline Mobile ArcGIS Demo

Offline Mobile GIS Shapefile Editing

Another important application of mobile ArcGIS is editing. In offline mode this would mean editing shapefiles. The video in the link below shows an offline mobile GIS application which allows both querying of shapefile feature attributes, and the editing of these attributes:

Offline Mobile ArcGIS Shapefile Editing Demo

Online Mobile ArcGIS Editing

How about editing features on a mobile device while online? The video in the link below shows editing feature attributes in a mobile ArcGIS application. It also demonstrates adding new features to the layer:

Online Mobile ArcGIS Editing demo