ScottW has entered a posting on the CommunityServer forum announcing that MetaBlogApi support has been dropped from the core CommunityServer build. That's a pity, because it will cause many default installations not to work with most client tools.
He also announces though, that the add-on will be freely available and even includes a zip attachment containing a current version of the add-on. I haven't been able to test it yet, but it is based upon the XmlRpc library from Cook Computing that was also used within .Text. This will surely work a lot better that the hacked together approach of XmlRpc in the RC2 CommunityServer build.
Good news for using Finch on CommunityServer. So, thumbs up!