As we all know (http://developers.facebook.com/docs/share/) Facebook has deprecated the share function. However, the about to go live app center apparently is using the very same share UI.

Is there a way for the regular folks to access the same UI from JS SDK provided by Facebook? Assuming, it is not the same as described in https://developers.facebook.com/docs/share/.
Although it’s deprecated, you can still use it in the way it was used before.
Facebook Share Documentation
However, It’s not a good idea to use this. Instead, you can just create a facebook app and use FB.ui to perform this action:
Example Code: