Thanks for the add-on!
I have a small book discussion forum, and every two days we start a thread for the next chapter discussion about the current book/series we are reading as a group. There are multiple people scheduled to start different threads on different days, and this add-on really helps us to stay organized and see at a glance what threads have already been scheduled and where someone might have gotten busy with life and need help to get theirs done.
I am running it on 1.5.6 right now with no problems. I contacted the developer once with a small question and received a quick response.
The add-on is easy to use. I only provided a brief tutorial for the other thread starters on how to use the add-on, and they mastered it immediately.
Permissions were pretty easy to figure out, the only part I got stuck on for a minute was that my thread scheduler group was unable to view the contents of threads scheduled by others, until I gave them the schedule posts permission as well.
Very nice add-on that works very well for us. Thanks again!