Is there any notice about the actual/future content of this API? I heard that only would be editing primary entities (points - polylines - polygons - tables). And another items would be read-only.
Would be recommended to have some documentation to take any references in any aspects related to this API.
Thanks for your interest in the File Geodatabase API. The beta program for the File Geodatabase API is currently planned to begin by mid-January. We are compiling a list of sites who are interested in the Beta program, if you are interested, please send me an email lshipman@esri.com with your contact information.