I searched for it in the past but could not find anything about it. So I don't think you will find anything on it. Although I used Hibernate and wanted to use it in combination with Scout, I started with Scout without Hibernate and must say that for my first projects I can do without Hibernate.
It is possible to use Hibernate in combination with Scout though. There is a talk about the combination on Scout and Hibernate at EclipseCon 2012, so for more info you just have to wait I guess.