Looking for the correct type of sensor swab for cleaning my 50D I've found this in the Photosol website:
http://www.photosol.com/store/pc/viewContent.asp?idpage=1
Well, I don't really know why this happens. Anyway I suppose that prototype sensors are also cleaned and maybe some guy in Photosol made a mistake. Or maybe not and it's only a typo.
I only wanted to share this with the forum. It was my first post on it. I hope nobody thinks it's spam or so.