But the worst has got to be the stupid tabbed windows. I routinely drag/drop between document windows and CS4 makes this very annoying. And turning off the tabbed windows in preferences is not the answer because the "floating" windows in CS4 do not behave the same as the MDI child windows in CS3. Big thumbs down on that one.
Again I think it's not knowing how to use new interface as opposed to interface not working.
You can drag layers to other documents in tabbed mode mode. You drag from the image [
not the layers pallete] to the tab wait for it to change and drag to new document. And if you hold shift, it centres layer in new document and if you select multiple layers [in Layers Pallette], you can move them all in one go too.
Though it would be better if you could drag directly from the layers pallete, but it's still better than the mess of windows you previously had, particularly in OSX.
Also have you tried tiling? Also a good way of arranging multiple documents.
I thought the clumsy old way is still there if you didn't tabs. Just tried it on my PC and old windows are there and if I turn off the application frame on the Mac it goes back to the old messy interface.
I'd highly recommend fully learning the subtleties of new interface before criticizing it.
A video of how to use the new UI wpould be a very helpful addtion to any new editions of programmes, as these things are not always obvious and affect the processes many of us do stuff without concious thinking.