As per previous posts in How Do I... and Mod sections, please consider adding new functionality in the next version that displays a blank text box with "Be the first to review this - if you're not a member, sign up first" or similar displayed in it.
This feature would deliver massive upside potential for ReviewPost.
Related threads:
http://www.photopost.com/forum/showthread.php?p=1194660 http://www.photopost.com/forum/showthread.php?t=124753