If you still have an iDevice with an older version of the Graal app, you can still access the servers and you won't be disconnected for inactivity. At least I think. Before the game came out on Facebook, I just idled in the Red Dragon Inn for literally somewhere between 3600-3800 hours by getting a Cydia app that launches an application when your device is plugged in. Set it to launch Graal when plugged in and it's easy enough. Pointless though, no idea why I did it.