What’s new is that Damon Baker of Nintendo has suggested that Unity could eventually be used for 3DS development. First, he said this about the Wii U:
Our priority was to get the Wii U build up and done and ready. Because we need a test environment for it, it’s taken a while for Unity to get finalized on Wii U, so that we can actually test against it. So that has been made available now and that is why we’ve got all of these [game] candidates waiting in the wings that are just going through the submission process at this point. Now, we can move on to other platforms and see how we can make those compatible, either with Unity or with additional middleware providers as well.
So, 3DS is definitely an exciting platform for us, because we’ve got a huge install base, and we want to take advantage of that. We’ve got a lot of developers that want to take advantage of it. So, we’re working towards that as well. But nothing to announce at this time.