Plus, more details on how big the Metroid demo will be.

There you go. Nintendo of America has included a logo for Metroid Prime Hunters: First Hunt right on the Nintendo DS's box, but the company is saying that later shipments of the system may have a cleaner look...
In addition to the built-in instant-messaging PictoChat feature, Nintendo DS units in North America will come with a free Nintendo DS Game Card featuring a playable demo of the upcoming Metroid Prime Hunters game*. The demo, called Metroid Prime Hunters: First Hunt, will feature several single-player modes of the first-person adventure game along with a unique multiplayer mode in which four DS users can compete wirelessly. Nintendo DS launches Nov. 21 in North America at an MSRP of $149.99.
(* while supplies last)
This statement confirms that PictoChat will be hardwired into the system and will not require a Game Card, but First Hunt will. It also clears up the question of whether First Hunt will include any single-player features, which was not clear after last week's announcements. And if you want the Metroid demo, you'd better pick up a DS this year, because it looks like it won't be offered forever.