So if someone creates an account without facebook connect, and then later rather than entering in their username and password, they click the "sign in with facebook" does it cause any problems?
As far as I can tell, so long as the e-mail address they have given to faceboook, matches the email they use, they will just sign in. However, if the email addresses do not match, then a new user will be created, so the person would have two accounts... anyone know anything about this? If their email matches what facebook has, is there any reason they should not switch back and forth between logging in using facebook connect and using their username and passsword?