IGN has interviewed Nintendo of America's vice-president of corporate affairs Perrin Kaplan. It's a must read interview that can be found here. Here's a short excerpt.
IGN: What's the battery life for DS?Perrin Kaplan: Very similar to the SP and I think very different from the PSP. I'm not quite sure why Sony said "Two to 10 hours" [for PSP's battery life]. That must mean that it's two hours.
IGN: What happened to Silicon Knights?
Perrin Kaplan: They are going to continue the business of what they do. We respect the work that they have done. They are a really, really good team. I just think Nintendo and Silicon Knights have slightly different priorities, which does happen in business quite frequently. But we have a lot of mutual respect for each other.
IGN: So have you seen this rumored two-minute Zelda trailer that Nintendo was going to show off, but pulled at the last minute?
Perrin Kaplan: I have and it's beautiful. What's not beautiful about the new Zelda?