It sounds like a fancy name for living in a share house, but I’ve just discovered this movement in modern intentional communities. The problem I suppose that exists with other intentional communities (i.e. hippie communes), is that everyone is all up in everyone else’s business. Cohousing offers the privacy of independent living with the benefits of an intentional community. I really like what I’ve read about it so far.
I found this site on cohousing in Australia, and I’m going to do more research into it. I’d really like to see how others have made something like this successful.