I would like to have a screecast showing how I can install tog in an existing application.

The project should offer a pre-configured rails application with all needed plugins installed, migrations created, etc. . This way testing the platform or starting new projects will be much easier.

Have a demo online of tog with all its features and extensions, so users can quickly check and evaluate tog, without install it

It's just a nice feature in some social netowrs and other sites. Shows what's happening.

I'm thinking on develop some kind of shoutbox or messenger for tog, so I would need to know when a given user is online or not.

Tutorials like "How to implement microblogging with tog", "Implementing internal messaging in your site with tog", etc