w00ty

I have an unflashed, plain DS with no Passme/Supercard stuff. Right. I was setting up a new Wifi connection for my DS, and I decided to do something a bit different. I put my MacBook into network mode, and serched on my DS. It appeared on my DS as WiFi point. I tried connecting, but in network mode there's no internet, so it didn't work. Would it be possible to do something i.e hacking/rom transfers via this?