+1. These new floating windows are very cute but unefortunately less efficient than previous IMHO.
Another point is that they don't remember their last position, driving me crazy...
While I don't disagree with you, Markus, that this is a downgrade from previous versions, so too (and even more time-wasting) is the lack of displayed script parameters. And I'm also 100% in agreement with Fred about the pop-up definition windows, which I still find MUCH more time-consuming and disorienting than in earlier versions. The part that drives me crazy is how they keep disappearing when I'm in the middle of doing something or in the middle of a thought about them (because I pause to check my email or someone IMs me or whatever), they take just as long to pop up as the old modal window, and they cannot be moved to a new position if you need to see another layout object that is unfortunately under the popup.
I have sent your suggestion to our Development and Testing departments for review.