From reading the Facebook page, looks like many people have had...

From reading the Facebook page, looks like many people have had login issues (Android already in 3rd update in 48hrs).

Initial version had
Login with Facebook
Login with Google
Sign-up with Email.

I clicked signup and then entered the email already used. It recognised this and sent me the login link -- but has got others confused - very poor design
Prior versions had you login with phone number.

Also noticed this morning a new promotion to win 1GB - get five users to sign up within 24hrs (they get 100MB) -- (already being misrepresented on their Facebook page as Get 1GB)