I just like your module! It just puts all the features into one single package!
I was trying to add a "like box" to my site yesterday, which would link to my page. The page was created but was not published to the audience (I had planned to publish it later). I created a block for the like box, but the block was only visible in the browser on which I was logged into Facebook as page administrator, which is obvious behavior.
I almost wasted an hour to figure out the actual reason of this. And after I published the page, the box became visible!
I think it should be made clear that the Facebook Page should be published before using this plugin for like box. So, it could save time of someone in future.