Hi Jim.
The BA Mobile app is able to access user and organization content, but with limitations at this time. The Mobile app can display full webmaps, but not separate layers from a webmap. To view the data in the Mobile app, this may be a workaround: Go to ArcGIS -> Groups then select a group with the same name as the project you wish to access webmaps from. You will see a list of webmaps from that project. As an example, see the images where a sample project "All Attributes Project" is being used that is shared for the organization.
I hope this helps!
- Debashish