Your comments

I'd really like to see this implemented!

I had to spend my time around in the settings, and then had to post to the troubleshooting forum, only to find out that the sidebar can't be moved.
I'd really like to see them implement this. It's such a trivial addition, but would make the editor fit my workflow so much better.

If the developers can't figure out how to make it work, perhaps they could talk to the crew who did Coda2. Those guys didn't seem to have an issues making the sidebar work on the right.