CE came out a few weeks earlier and there were some bugs that were fixed in the mean time. It was meant as a preview for the Mandrake 'community', but some saw it as a final RC before the world and dog version. You can always update to the official via urpmi if you already have the CE downloaded.
Here is the errata for 10CE:
http://www.mandrakelinux.com/en/errata.php3
...and some of them still are present in 10 Official, but a few are gone:
http://qa.mandrakesoft.com/twiki/bin...10ReleaseNotes
