My activitystream_identicagroup module is included with activitystream_identica as a submodule. You may still want to use my view to dress it up a bit -- that will be contributed upstream when I have time. If you previously downloaded and installed activitystream_identicagroup from my blog post, you should disable it and delete it from your modules directery before installing/upgrading to activitystream_identica version 1.1.