OK, I did change the permissions to my user name and unfortunately still unable to save edited files. I get a "connection error" as the message.
Secondly, I still need re-enter my password very often although from my perspective I am still in the same session. This must be a simple thing I am missing, right? I have a plain install of web2py trunk and an obviously working uwsgi. I can also log in, but I don't seem to be able to stay logged in!? Any takers? :)