Currently you can chose from login via Facebook account or username/password combination.
Would it be possible to add Google accounts or even OpenID as login?
Technically, yes. Unfortunately we have quite a few more important things on our to-do list for the foreseeable future, so I don't think I'll around to adding further authentication methods anytime soon.
Thanks a lot for the answer, maybe you can put it far down on your list :-)
Thanks,
Hannes