I think that it is not possible with iPads + Lr mobile.
So it seems to me that the only way for tethered capture on location is a tablet with Windows installation + Lr.
Does Lr work without any problem on 32-bit tablets?
Any experiences and advises on setups for tethered capture on location?
Is there any possibility in near future to see an improved version of Lr mobile with catalog creation and tethered shooting capabilities?