http://blogs.msdn.com/steverac/archive/2009/06/11/sccm-features-not-supported-through-ibcm.aspxI was looking for this information recently and had a hard time locating it – probably my poor searching skills!  Nevertheless, I found it again so am posting it on my blog so I can always have it close!  The information comes from http://technet.microsoft.com/en-us/library/bb693755.aspxenCommunityServer 2.1 SP1 (Build: 61025.2)