y' know what'd be nice to have. An exporter that dumps all posts and stuff into Activity Stream representation. And then an importer to get all of it back in. I'm thinking this should be possible in *oma. First dump everything in a big json or csv. Then have a mix task to pass the objects one by one to the pipeline. And the fetcher can be changed so that it doesn't fetch over http, but reads from the dump.

It wouldn't fully solve migrating softwares bc not all software use the same iri-schema for representing things, but it could be a start. And bc it would use AS, it's already using a standard representation everyone understands.