Look here: http://vegastrike.sourceforge.net/forums/viewtopic.php?f=38&t=15710&p=120556#p120556
We have a nice GUI toolkit, MyGUI, that would interphase nicely with both VS' base interface and Ogre. And it has RTT.
Which means it's a good candidate to implement RTT-based interfaces, either for the nav map, HUD, bases.
If HUD screens can be reworked to use this framework, we could inherit its RTT support and have truly 3D cockpits.