Unlike correspondence chess where the state of the game is visible at all times, with poker, the state would need to be maintained on a server somewhere, and with 1 hand taking potentially a week, you'd be dependent on the server maintaining and not losing this information even during system updates. I guess the state of the game would be stored in a database. How would this be raked? As normal or at a higher fee? Is there a real market for this? The client would need to be browser based cos it's generally poker on the move?

What is the URL of the correspondence poker site?