I'm currently working on implementing OStatus in OSW. I am basically
extending the OSW openfire plugin functionality to support: webfinger,
pubsubhubub, salmon, etc.
I have already finished with Webfinger (still need to push a bit of
the code, the branch is called ostatus in github.com/onesocialweb
I'm working on publishing PuSH-enabled feeds for user's public
activities. Just watch the github repo to follow the progress.
I will probably move all OStatus-related functionality to another
Openfire plugin later, so a host can decide if he wants to support
both protocols or not. At the moment I'm just focusing on getting
OStatus to work.