I don't understand the appeal of the multi-windows. I use GIMP at home and I often have multiple images open and find the tool windows disappear on me. It's frustrating. What's overrated about the single window interface and what draws you to multi window mode?
The fact that I can use the window manager of my choice to manage the windows.
I guess the question is whether or not you're using a powerful window manager or not. Most window managers in linux support easy always-on-top and layers, so the multi-window UI really shines.
Ah, this makes sense now :) I haven't tried with a window manager. I'm typically in Windows at home and not always on Linux so I'll have to experiment.
I don't even get how people can claim that there is a big difference anyhow - If we were brutally honest here, Photoshop is really only multi-windowed, too - with the main window maximized in the background and carrying the main menu.