Any solution will do, I guess. The goal is to have two companies being able to work on the same workshared file. Cost is of essence, obviously, but no point on having a cheap, worthless solution.
Which will be a workable solution, in your opinion.
I have been looking at some BIM cloud services as well.
http://cs-grp.net/bimcloud/index.htm
http://appliedsoftwareblog.blogspot....different.html
How to they do it? Or, can we do it instead with some IT support?