This shouldn't be too hard. Don't have the time right now but here's what you need to do:

Sign up on their page. Set up you channel.

They offer code to embed that channel in a webpage...

The thing is that their "virtualchumby" is pretty much what you want except the ugly box around the screen.

So... find string like this in the embed code: http%3A%2F%2Fwww.chumby.com%2Fxml%2Fvirtualprofile s%2FB26BB7F8-6B3D-11DC-9FAD-0030488CBE0D&baseURL=http%3A%2F%2Fwww.chumby.c om

convert all the gibberish and you will get a link to an xml file - like this : http://www.chumby.com/xml/virtualpro...D-0030488CBE0D

Now in that XML file are direct links to the flashfiles chumby is playing.
Like this: http://www.chumby.com/xml/movies/BB9...9-0030488E34F8
So all you need is to put some love in a little php scipt and the n800 will be you new chumby

Have fun!

(and let me know if it works for ya)