for the time being only via facebook, we are considering our own user login and other alternatives too...stay tunned
nice )
You can also make sign up with google

Yes please! I've been lately using twitter and google logins and found out they provide a great user experience - as long as I don't have to reenter my details or use them as basis to create an account...
same here, facebook is the new digital id.. cant keep track of dozens of password for every site...