Paste is used for deployment of the following Pylons (heavily WSGI/Paste integrated) webapp: http://hellanzb.com/trac/wiki/HellaHella
This webapp has been downloaded and deployed by dozens of users on a variety of different platforms without issues. When it comes to a production setup, Paste really isn't doing much, it's just starting flup's fcgi/scgi server which then calls your WSGI setup. It does give you some handy daemonizing functionality as well. - Ben

