Today, eight games launched along with the Nintendo 3DS in Japan. But if you don't end up getting any packaged titles, there is already pre-bundled software on the 3DS that should keep you entertained. It's doing that for me!
The 3D camera is fun and all, but AR Games really seems to be the most interesting. It's something that I would have actually bought if Nintendo didn't toss it in as a freebie. Who doesn't want to fight fire-breathing monsters on their sofa or have Mario hang out on their desk?