Yes, ignore the workspace question for now. We thought at one point that it would be useful to have named workspaces to keep track of places on different pods which they shared with different people. There is a vestige of that when you create a new thing with no contact, in the home pane. The idea is that users should go through life without having to worry about URLs.
If you create things in the folder pane, or the meeting pane, then there is no need to ask where to put the new thing, as it is put in the folder or the meeting. You just have to give a short name for the last part of the URL. I always use those in fact to make new things.
It may be that we bring the workspace idea back in some form particularly for mobile where no one wants to typing large URIs.