Just another update. The profile modal usage has now been implemented. You'll be able to check your messages in the same way you check for new CB Activity notifications via a modal window that opens from an icon on your CB Menu bar. Check it out below.
This can also be optionally disabled if you don't want to use it. There will be no further means of outputting this icon however so outputting in a module, etc.. will not be possible unless that module is just outputting the CB Menu tab. Future usages may be added to allow outputting it outside of profile though.