File Geodatabase version choice.
If I have ArcViewer v10.2 installed, it would be great to be able to set scripts, when using that license to write File GDB's to choose what version to produce from 9.3 - 10.0 - 10.1 - 10.2
I'm not sure if ESRI has this ability in their software though. We have to worry about backwards compatibility for clients using the exported data.