Ha. This is so weird. A System Update... before the system even launches? Strangely, I'm excited to see what these short videos look like on the 3DS. If they can keep a consistent stream of mini-content like this coming in, I think it's a very cool little bonus feature that many aren't considering when they evaluate the new handheld.
Although I thought the SpotPass was supposed to make updates like this easier, even automatic? Or will some be automatic, while others you'll need to manually go in and click "Update"? I'm thinking less about me, and more about the inevitable buyers of 3DS who can't program their DVR. Very interested to see what happens in the first few weeks/months after launch...