We use PCoIP. Yes, we are trying to pull the iPad into the windows session. On the 5030 (zero clients) the window session sees the iPad as a removable device in file explorer and the iPad shows up in device manager. On the 3040 (thinOS) the iPad does not show in either place (in the same windows VDI desktop).
Here are the WMS settings:
and the event log from the 3040 when the iPad is connected (sorry for the crudeness of the image):