Create a feature service within your ArcGIS.com organizational account from an Android Device. Demonstrates all the REST calls, JSON response parsing. Code demonstrates point feature service creation, allows you to create any number of fields, field names, field alias and field types you choose. Only three data types supported in the UI, but code behind has full support if you the developer want to expand the UI. Still some work to add, some UI component massaging, and the symbol code needs some changes.