Today I’ve added my game on facebook, I didn’t think it would be so easy… There’s not so much documentation (most of them are outdated) on the Internet but the API is very easy to use.
I did some small UI changes to fit in the standard 760 pixels width, and there are also some other minors changes (options page and such), but it seems to work nicely. The two communities will be in the ‘same’ virtual world, meaning a facebook user will be able to interact (fight, be friend,…) with a non-facebook user. But you can’t migrate your account.
Here’s the application : http://apps.facebook.com/the_snorms