http://games.kikizo.com/features/yuji-naka-prope-interview-feb-2009-p1.asp
An interesting bit:
Kikizo: At TGS, and you mentioned that you are working on a character-based action title in the style of Sonic. When do you think we may learn more about this title?
Naka: Well, before Let's Tap came about, there had been two action-adventure games in development - one of which was originally due to be released last year, but in the end that title was cancelled. And there was another one, which was in development for a couple of months. Meanwhile, Let's Tap was in development, and that's been released in Japan now. So this kind of character-based action game is always something that's on my mind, but this is an ongoing negotiation with Sega, so I don't know when it might be released, and there's no guarantee that it will actually be approved. So I can't really comment further on that. But once the time comes, when there is a guarantee that it's going to come out, then I'll be able to start talking about it.
