Replying to Thread preview feature suggestion

I would just want to suggest that maybe we could benifit from a thread preview type of feature. Other forums I belong to use this and I find it very helpful. I am talking about how you can run your mouse over the title of a thread, and a small box will show with a short preview of the first 100 characters or so of the post. I allows you to browse around without having to click every thread you might be interested in. Just a thought.