Considering user sloth as a new "given," I think "The ability to log in here with Facebook Connect, which would let Facebook users use FTM without creating a whole separate login." stands head and shoulders above any of your other ideas.
" A Facebook page that redirects to FTM." is a good alternative, but a distant second.
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
