I have a simple question, but I am sure the answer would be rather complicated, still, here it is:

What is that separates SUSE Manager so much from the its alternative Spacewalk? Are there any additional features that are not present in Spacewalk, and if so, which are they? Is the support or the availability of patchs and updates better? I have tried to look for some information about this on the web but I found nothing but info brochures from Novell and SUSE

Thanks in advance!