My best knowledge is that XS 6.1 is not supported by any version of CloudStack yet, simply it looks like this KB is wrong. Let me follow up internally on this KB and fix it.
This is what is supported now:
? XenServer 5.6 SP2 or 6.0.2 (for CloudStack 3.0.2 and greater)
? XenServer 6.0.2 (for CloudStack 3.0.1 and greater)
? XenServer 6.0 (for CloudStack 3.0.0 only)
quote from "CloudStack Basic Installation Guide"

Radek.

obviously the CloudStack installation guide was written before xenserver 6.1 release.

but also i have seen this article here: http://www.citrix.com/news/announcements/oct-2012/citrix-advances-cloud-strategy-with-new-version-of-xenserver-.html

which says:

Enhanced Integration with Leading Cloud Platforms: Direct integration with Apache CloudStack and Citrix CloudPlatform, powered by Apache CloudStack...

so where i can find this integration then? or do you maybe know when it will be supported? thanks

Christoph, XenServer 6.1 indeed includes couple of features which extends its cloud related functionalities, so current state is that CloudStack need to catchup and utilize those features.
I don't really have a deep knowledge about planed CS features and timelines so I don't want to generate rumor, so please forgive.

Radek.

New updated version of CTX134803 has just became public.

thanks :-)