thanks everyone for taking the time to comment. I think the main lessons are:
1) provide independent login
2) explain better what facebook connect is used for
3) provide more information upfront what the service is like, some people can decide if they want it.
4) an example page
i am glad i got early feedback :) thank you all so much
ya. i was thinking in terms of clicks. one click, and you have an account. I didn't expect the idea of using facebook itself a big mental wall. But the immediate plan is
1) make a screen cast
2) link to my own account as an example page
3) some sort of alternate login
to be honest, i am a surprised that facebook connect is the biggest issue. I guess we techies are more cautious and cynical about facebook. I wonder how i can test against a less tech oriented crowd.