When I think of alternative controllers I think of the horrible plan to have the GBA as the secondary controller on Cube. I want one standard for controlling the games and I want it to be packaged with the sytem at launch. Gyration can simulate steering wheels, light guns, mice, swords perhaps, tilting games, music games, flight sticks, and traditional console controllers. If they are planning on having some "revolutionary" gameplay device and then force us to buy multiple DSs just so we can use mic, camera, touch screen, dpad, or just the two screens for personal display then count me out. It is supposed to the Nintendo Revolution, not the Nintendo DS networker. Everything the DS does should either be packaged in with Revolution or only optional. With the touch screen and a DS camera one could open the option of customizing their games more than the other consoles could offer. I feel a microphone for example is something that should come with the Revolution and not be held hostage on the DS.
I dont think they should put a screen on the next controller because that would mean that the controller would have to be one piece of hardware rather than two independent handles with independent gyration. Sure steering wheel simulation could be easier if the controller were one piece of plastic but that kills all of the posibilities and flexibilities offered by having two handles. Imagine operating camera, character movement, aim, and your grappling beam all indepently in Metroid Revolution. Imagine grabbing anything you want with the grappling beam and using it like a tentacle you can grab, throw, or pull anything while still firing with full aim control independent of camera control. Sony and MS sound like they are going to go with cameras and traditional controllers. Thus they leave it up to the developer to come up with ways to control the game rather than supplying a way like gyration would. It seems Sony wants the success or failure of the camera technology as a controlling mechanism to be on the shoulders of the third party developers. You give people enough rope and they'll hang themselves. I would rather have something more accurate like gyration. With cameras you usually only get two dimensions of data. Up down and left right. With gyration you could also get forward and backward tilting and if you use gyration handles in conjunction with a camera then anything is possible.
I dont care for a screen that I have to look down at when my eyes shouldn't have to leave the screen. For god's sake Nintendo needs to go online. I dont know a person with a Cube that doesn't also have internet. I also don't know anyone personally that has a Cube but doesn't also happen to have broadband. But I dont know anyone who plays their Cube online.
The only alternative controller that has worked for Nintendo on a large scale has been the Wavebird. It doesn't change anything about the Cube controller, but it offers an alternative way of playing. I feel that Nintendo will have standard wireless controllers next generation and cords will be the alternative. They could just package detachable cords that can be used when the batteries are low or you want rumble, buzzing, heat, cold, and other sensations generated by the controller.