In a perfect world Nintendo's next console would be a more core gamer focused version of the Wii, with improved graphics, more buttons on the controllers, a more robust online service, etc. that would be backwards compatible with the Wii, which would still be supported for the casuals/nongamers/whatever we're calling them this week. In the real world Nintendo is going to have to find a way to make the gameplay different enough and make the perfect game to pack in with it as a showcase for it in order to get the people who bought the Wii for Wii Sports to buy it.