dicepro: I second that 100% ! The doubling cube would enhance many games other than backgammon, and even if one thinks that there are games that don't play well with it, what the heck ? Just play those without the cube !

The doubling cube is especially interesting to use in games where there is a random element. My first thought is that it would be a bit weird to use the doubling cube in a game of incomplete information like Logik, but after a second thought, in fact it seems a great idea : in Logik, that would force to look at what the opponent is playing, thus bringing real interaction in the game (which for the moment is almost a double solo game).

Another good reason to do it is homogeneity. Rules that apply only to some games are harder to maintain.