"Interesting problem! It'd actually be quite complex to embed a copy of XCSoar within Condor.
Instead I'd suggest the developers consider implementing a minimal VNC client (program for viewing the screen of other devices) in Condor. The protocol's publically available and in theory simple to implement; basically connect to a VNC server running on the user's device and request periodic screen updates, copying each screen update to a texture in Condor.
The VR representation of the mobile device would be view only and all input would be made on the physical device. Only trick would be remembering exactly where the physical device is, but I'd have thought placing some kind of tactile reference object near one corner of the device should be enough."
I reckon this way is a bit less difficult to do...
