A fun project could be a "touch" UI for FS2. Some custom, bigger, HUD widgets with input zones for tap/swipe moves.
Left controls:
- Glide zone for x/y axis control, tap for afterburner
- Thrust slider :
* if you are not using speed matching, this is an absolute speed control
* if you are matching your target speed, this is a relative control that resets when not pressed (basically, when following a target, swipe to the left to let it go away, swipe to the right to come closer)
Right controls:
- Primary fire control, tap to fire, swipe to cycle
- Secondary fire control, tap to fire, swipe to cycle
Lower-middle controls:
- Auto-targeting :
* if no enemy is around : cycle targets
* if bombs are around : target closest bomb
* if enemies are around, and you haven't used targeting in a while : target closest enemy
* if enemies are around, and you have used targeting in the last few seconds : target next enemy
* a long press would toggle auto-targeting
- Speed matching :
* single tap to match a target's speed
* longer press to toggle auto-speed
A touch friendly radial comms menu.
Misc.:
- tap the radar to change range
- tap the escort list to cycle through ships.
- tap a ship for more specific targeting/subsystem targeting/turret targeting.
I could actually enjoy playing FS2 with that kind of UI

(I'm really saying that we could play FS2 with 2 control zones, 2 buttons, and a radial menu)