Agreed, the fact that FileZilla is cross-platform gives it major marks in my book. I have to admit that when I first heard about it I was quite skeptical, since it was based on wxWidgets. Either layout is very difficult or mind-numbingly easy in wxWidgets, because every app I have encountered based on it has had a very sloppy interface. Audacity was based on wxWidgets, but then moved to wxGTK a close cousin. They have cleaned up the interface considerably since they started but I think it still need a bit of work.