Markus Kummer's official statement on the China censorship controversy at the IGF is that the banner in question was removed not because it was critical of China, but because promotional materials may not be displayed except in the IGF Village. Whilst this has already been conclusively rebutted, here is further visual proof.
I am writing from the launch of the Global Information Society Watch 2009 at the IGF. Below is a picture of a banner advertising the GISWatch 2009 publication - for which I'm hoping to soon confirm no prior clearance was obtained... and a photograph of Markus Kummer (on the right), happily socialising next to it. Click on the thumbnails for larger images.