There are several nits to pick:
- these are amateurs lawyers killing cooperation between two major open content projects
- no credible sources have been provided to support such broad statements
- no lawyers support any of the positions taken by either side
- my impression that FUD is the basis of much of this copyright / licensing paranoia
What we need is to learn the real situation. We need to learn what we can do. When maps cannot be used because they should not be available under a free license in Wikipedia, we have a process of dealing with this.
It is not acceptable for this sorry situation to continue. It is not only in the interest of the Wikimedia Foundation and the OpenStreetMap Foundation but in the interest of the open content world that this storm in a tea cup ends. Both projects provide their data under the CC-by-sa license and we are stronger when we are seen to work together.
In previous blog posts (1, 2, 3) I called for a project manager to make the integration of WMF projects with OpenStreetMap happen. This whole sorry saga provides additional arguments why we should give this project more visibility.
NB I am really happy that this issue surfaced now and not later.