I've been a fan of this game, as well other physics based games, for a while. N was initially developed by a small team of, I think, about two people. If you go over to MetaNet you'll quickly see the dedication they put into making games (they're currently working on a robot physics-based game!). That's why I spent the money today to pick up N+. This is the kind of thing that's worth supporting.
That said, after playing through the first few levels, something feels amiss. It feels smaller. The pixels feel blocky compared to the crispness that was N on my Macintosh many years ago. I still think it's way, way above average for a DS release though, and I'm looking forward to playing and testing the DS version a bit more.