User blog comment:Jenburton/Coming Soon: Message Wall in Labs/@comment-3030984-20111025081430/@comment-1656630-20111026014430

We're not (currently) building a tool that imports/exports between the two tools -- it seems wiser (and cleaner) just to let content live in the medium it was written for. However, we know that when the feature gets enabled, some people will be mid-conversation, and will need to move a conversation from Talk to Wall. We've already seen this done on test wikis, and a manual copy-paste works just fine.