FB Connect modal; put create and connect existing account all in the same modal

The old version of FB connect displayed a modal when users choose to login via the user menu.  This modal allowed them to create a new account, or click a button that would take them to a sign in page.  Rather than split the experience, put create and sign-in in the same modal.

https://wikia-inc.atlassian.net/browse/UC-111
That style is really unattractive IMO. I thought this was more expressive and avoided direct creation of ad-hoc member variables. Is there a convention about this?