mothman on 13 December 2011
There are som games in the eshop that are in 3D but many more that aren't. For instance all the DSiWare games are available but they aren't in 3D.
To be honest I haven't looked for demos so I'm not sure if any are available.
I did read somewhere about the original Kid Icarus being available free if you are a Club Nintendo member and register a couple of eligible games by a certain date. In Canada that was not available last time I checked. Not sure about other places
