Glad that the recent "outage" has been restored ... but I was worried that we would have no mechanism to restore it ....i see now that the google group is still working .... plese register your interest ..here
The game server is still down though. The forums and the site are accessible again, but the Enjoy Sudoku app and web version depend on the game server. I wonder what happened - DNS could not even resolve any addresses in the enjoysudoku.com domain from Friday until today. It was as if the domain had disappeared from the internet. Maybe the game server is in another domain that hasn't yet been restored?
Edit: only the game server for the web version is down or inaccessible. The game server for the desktop app, at least, seems to be up again.