Again, I remember a whole lot of excitement from devs when the wiimote was unveiled.
But that clearly was all just talk since none of them has expressed this excitement in the form of actual games.
I would consider the Wii controller to be the remote and the nunchuk. You get 1 analog stick, 1 d-pad, 3 trigger buttons, 1 face button. On the Gamecube you have 2 analog sticks, 1 d-pad, 3 trigger buttons and 4 face buttons. The + and - buttons are what I would consider administrative buttons like the start button on the Cube. They are not designed to be easily accessible in the heat of the moment. Buttons 1&2 also do not count because they are clearly designed to be used either as administrative buttons or as replacements for A&B when used in sideways mode.
The Cube d-pad isn't so hot but it is accessible in the heat of the moment. Even if you exclude it then the C-stick and Wii d-pad could be considered equals. That still leaves THREE MISSING BUTTONS. That's a big fucking deal. Yeah I guess you could make a shake of the nunchuk one and a shake of the remote another but you're still down one. On the Cube you could use the d-pad as a makeshift four more buttons for lesser used functions. Even if you use 1&2 or one of the - button you're still missing at least one more button and at this point you're using buttons located under the palm.
As a game developer I wouldn't even be cool with mapping analog stick movement to a d-pad or vice versa. My game's controls are going to suffer. Mapping a gesture is less precise than a button so if I have to do that I'm compromising my controls even more. But with the DS everything from the GBA is there plus I have two more face buttons and a touchscreen. Now they're adding an analog stick thingy. It just gives me more options.
I think when courting devs if you have to give an excuse you've failed. "Well you could do this..." Yeah, **** that ****. If you're really designing something developer friendly you don't have to point out the values of this or that. You just show it and it speaks for itself. The 3DS does this. I don't see any excuses. Just knowing what it is gives me confidence in it. I know it won't have control issues, I can tell from the screenshots that we're looking at a major hardware updrade even if a game doesn't use the 3D effect. It wows me and I haven't even seen the 3D effect yet. Because it just builds on what has been there since 1989 I don't have to re-invent the wheel or change how I approach game design. If I'm making a game I can do what I did before or I can do something new.
With the Wii you had to rethink how you approached the controls and you could not use improved hardware to do new things. I look at the DS, 3DS, PS3 and X360 as taking an empty field and making it bigger. The Wii was taking a football field and turning it into a baseball diamond.