Nowadays, most devs in our project seems to agree that the wxWidgets GUI is crap (no way?! :P ) but no one can be motivated enough to do something about it. Mind you, things are changing though. We're planning on improving our core<->GUI interface so that writing a GUI will be less of a pain and hopefully will be able to ship Dolphin 5.0 with a better GUI based on Qt.
No announcement yet.
Dolphin Emulator 4.0 Released For GameCube, Wii