I know you mentioned to close the ticked due to your other post, which I responded to. Just to clarify the namespace field, it's a settings specific to your app under which your custom Facebook Objects are created. It's completely up to you, so, for instance, our namespace is "joomla-extensions". We also have other sites with a namespace of 'jfbconnect-demo' and a few others.
The only way an end user would see your namespace name is if you use the Facebook Canvas feature where you show your site within Facebook, like:
apps.facebook.com/joomla-extensions/
Other than that, the namespace you choose really isn't very important.
I hope that helps answer your questions,
Alex
can't create OG objects
