For those of you looking for video demonstrations that show how to use the
features of OpenStudio, setup a simple building simulation, and review the
results, I suggest you check out OpenStudio's Youtube channel,
https://www.youtube.com/user/NRELOpenStudio. I thought that the training
on January 16th was a good overview of the background and future goals of
the OpenStudio project. I imagine that there will be additional webinars
in the future which help address some of your concerns as well.

Alex N. Chapin