I have a flash game on a Facebook fan page. After someone plays it will ask them to tell some Facebook friends. If they click through it will send them to the Canvas page and allow them to invite their friends.
When the recipient accepts the invite it will send them either to the canvas page or directly to the fan page and post on their wall that they received a chance to play with links to the canvas or fan page.
I would like the app coding to run off of my server without iframe scrollbars.