Still tough to stop people from cheating. Even if they have some kind of detection of the glass being on the machine, people could be crazy enough to cut a hole in the glass to cheat.
I'm not a serious enough player to actually care about if I get beat or not, and I despise cheating in anything I do, so I think it would be fun to play against some friends on here at random. I don't get anything out of cheating, so it would be fun to see how I fair against some other people I know on here but have never met. Sounds good to me!