N+ is now available on Xbox Live Marketplace. Oh, but that's not all. It's also 100% completely, totally free! So, that's pretty cool right? The folks at Metanet have also annoucned a new "contesque" in which you could win a copy of N+ on your platform of choice. All you have to do is send a picture of an N+ related costume or craft, or a piece of digital art. Head over to Metanet for full details, and go get that level pack!
[Thanks, Brian. Via Joystiq]