From some time ago, one of the requirements of the applications hosted at Play Store is that access to the different URLs has to be through https connections. In the latest gvSIG Mobile version, the OSM Mapnik layer that appears as base layer by default is an http connection, so it is not shown in the viewer.
The solution to show that layer is the following one:
- Download the following file from your mobile device: http://devel.gvsig.org/download/projects/gvsig-mobile/mapnik10.mapurl
- Access to gvSIG Mobile base layers menu, and add that file.
- Then select that “mapnik10” layer as base layer, and now if you open the viewer, the OSM layer will appear (if you have an internet connection).
Here you have a video about how to do it: