I do not see that the tools allow for editing data on the map directly, that comes from a Sharepoint List. Please correct me if I am wrong but I only see the edit tools available if feature layers are involved on the map.
To edit the item in a sharepoint list you have to go through the edit item form, and if that is the only way, then is there a way to add other reference layers to the map presented there?
Request for next version: get editing of the sharepoint list into the map itself.
Just noticed, can I change the scale of the map window by default? I see the extent coords, but that doesnt really make sense as it zooms to the location of the feature for each one. Scale or zoom level would be a better value here. Is there a also a maximum scale set to zoom into, or is that determined by the first basemap layer as in the other APIs?