pauloaguia: That is a nice idea, I like it. Such poll games use to be very popular, and I know that at least the french-speaking community has already organized one here, using a fellowship discussion board.
It unfortunately seems to be a lot of work to program, however it would probably generate a lot of activity in return, when people will argue about what the best move is or was ; a discussion board attached to the game would probably be called for.
One must realize that one never manages to get all players voting, so that such games are playable only with a fast time control (one day, and if you were away you just missed one vote), or with a fixed percentage of votes needed for the move to be triggered.