Hi,
I'm not sure I undestand your question, but you can see a "View <contenttype> on Site" link in the content's admin page. This link will go to the public view, yet in draft state.
But if you refer "is there any link to list all the contents to be reviewed?", the answer is _yes_, in /admin/review/reviewtask/ URL will list all your review tasks. The trick is the "pending" state: if you set a content as "pending", Merengue will create a review task to all reviewers, who are users with "Can set as published" permission. By default there is a "Reviewers" group with that permission.
So, the intended workflow is:
1. An editor creates content in draft state.
2. When the editor think the content is ready for publishing, he set it as "pending".
3. The reviewer goes to the review task listing.
4. The reviewer publish the contents are correct.
I hope I answer well to your question.
Regards,
Manuel Saelices.
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