first thing facebook must do is stop spamming their users, stop playing with their system and changing the keyboard settings.
theykeep changing their system, jumping windows, 1 mistake with password you get an email, you login they want you to set facebook to be your homepage and on and on.............. STOP!
the email idea is nice but I wouldn't be one of their users for sure because their system is disturbingly getting into your personal life and their assumption social is together with email is wrong. I like my email to be just an email box and that's it.