I think I might have had the wrong idea of what you could do with ArcGIS for SharePoint.
I was hoping you could create a SharePoint list item using an interactive map, using SharePoint as a way of editing the item's attributes in the list view. Each list item would be a map feature.
Like, create a new list item, then have an interactive map in the input form where you could draw a polygon or drop a point while entering the attributes in the form fields, and view and edit the list of features in the SharePoint list.
Is that possible? The documentation makes it seem like you really just geo-tag existing items with existing features on a map.