There may have been no mention of the 3DS Animal Crossing in any of the North American Nintendo presentations because the game isn't probably coming out until next spring at best, but as it drops this fall in Japan, it made it into their Nintendo Direct video. Here's some footage of the game with some Japanese narration that I don't understand.
But it's nice to see some familiar faces amongst the townsfolk as well as some newbies. (Though it's weird to see humans with long legs!) I also love that you get to sit at the mayor's desk in Town Hall to do mayoral things like decorating the town with benches, lampposts and... solar panels? That's definitely new. Hopefully that's not the start of some new Sim City aspect to town management where you have to have enough energy to power things...
Able Sisters and Nook's look exactly the same, and the clothing shop has exactly the same music. (Part of me thinks that's lazy, but the other part of me would probably hate any new tune they came up with.) And Katrina is still hanging around to tell your fortune! It's just not clear from this footage if she's in the pop-up tent that she uses when she would occasionally visit your town or in a permanent spot in the city like in Animal Crossing: City Folk.
It would seem that you're able to visit with your friends and hang out in real time like you can with the Wii version, but the StreetPass functionality creates a street of model homes you can just check out. At least, that's what it looks like to me. Like the model home in the Wii game, where you can poke around for decorating tips. But no actual interaction with the other player.
And I can't wait to see what everyone does with their decorating this time around, because not only can you fully customize patterns on your furniture and other interiors, you can also customize the outside beyond just the color of your roof! It's about time!
Everything I see about Animal Crossing 3DS has me more and more excited for it, and it's killing me that we're not going to get it here until next year. It had better be early next year, or I'm ready to learn Japanese and try importing it!