I have a few entries to wrap up and post here, all relating to my own theories on playwriting. I will deal with plotting, practical concerns, and something I like to call "dialogueing."
I discovered the word "metatheatre" today. It's funny how you can formulate your own ideas and stir them around in the ol' mental cauldron and one day you find out there are others who have been working from the same spellbook -- and these others are much further along in their workings. I Googled the term "metatheatre" after reflecting on some of my pet theories and ideas regarding interactive theatre and how the prefix "meta-" added to the word "theatre" would describe what I was envisioning. Lo and behold, there are many who have gone before.
Expect some pontificating on the subject of metatheatre in the near future.