You of course realize that the Gameboy, Gameboy Pocket, and Gameboy Color were all the same thing. And that the Gamboy advance was little more than a graphics upgrade?

Of course they are just going to keep redesigning the DS. That is what Nintendo does with their handhelds. They make them slimmer, lighter, more colorful, improve the graphics. Make the batteries last longer, and the screens bigger and brigter. It is only when they can't do that any more that they move on to the next handheld.

The DS will go the same route.

DS (original flavor)
DS Lite (thinner version)
DS Camera (Camera version)
DS Crackberry (PDA version)

And so on until they run out of ways to "improve" it so that people feel compelled to run out and replace a perfectly good system with the lastest "upgrade".

What are they gonna do, start from scratch? They're not that smart =D

Its only a rumor for now. It will become a reality on Thursday.