Well, here were my predictions 
http://www.vgchartz.com/forum/thread.php?id=22982
04/07/08
I predict a new DS design this year or early next year
I believe that Nintendo will release a new DS design at the end of this year or early next year. The GBA had new models every two years, 2001, 2003, 2005.
Also, the Wii will be two years old, meaning that no new Nintendo hardware will be released for over two years. You can't tell me they haven't been working on something all this time.
I give a small chance that a mobile phone device will be announced within the next year.
http://vgchartz.com/forum/reply.php?thread=33347
02/09/08
Will the DS get another redesign?
Seeing the new Apple Air made me think that the DS could undergo a similar transformation. First, geting rid of the GBA slot, that thing takes up a ton of space. Next, get LED backlighting. Technology has also improved since the DS Lite was released, so better battery life is possibly by using smaller components and better batteries.
Imagine a half in thick DS that folded up like a makeup case. The women would go nuts over it. Also, it would be cool if the case was metal.
