The French Developer has published this video of his first test prototype of his Game Engine for Windows Phone 7 using XNA 4.0.
The software is still in development but features at present:
Touch Inputs (need real device with accelerometer) :
– Pitch & Roll by dragging one finger
– Increase & Decrease Thrust by dragging two fingers
3D Engine :
– Scene graph
Physics Engine (from David M Bourg ‘s Book : Physics For Game Developers):
– Aircraft Physics
– Math Helper
Follow his efforts on his Youtube channel here.