I think wxWidgets vs. SFML bug is really annoying. Also GD preview != compiled game (not everything works like in “real” game, e.g. scene switching, quitting).
So here what I’ve though:
We need to do what all others game-making tools does. GD should compile game on fastest settings (so “preview compilation” won’t be long) to temp directory and then execute it with embedded debugger (kinda like in MMF/TGF or RPG Maker).
I know I’ve bring up this before, but we really need that because of annoying WxWidgets vs. SFML bug and because scene preview doesn’t really reflect game, especially if you use things like text entry.