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I'm currently running opensuse 10.3 and kde 4.0.4 packages from the build service, and I can do all of those: create multiple panels, change their appearance (new themes pop regularly on kde-look.org), and resize it (although you can't for example have a horizontal panel that doesn't cover the entire width of your monitor, you can only adjust height with horizontal panel, and width with a vertical one).
openSUSE does backport more things than are in the original kde 4.0.4 packages, but there you have it, at least on openSUSE you can today have stable packages with all those features included.
(And finally, I guess it's easier to press + or - than to give a straight answer).
Thank you for the helpful response, Ivo. :-)
when i've installed and tested F9 myself i'll be happy to reply, however the screenshots were not taken by me. Sorry for the delay in resonding...