Using Mario Kart: Double Dash, the Wii Shop channel, the Nintendo DS Browser and the DSi Browser, I was able to connect 13 Nintendo units to my local network at the same time.
While doing this, I discovered that a very small portal has formed in the center of my entertainment room. This portal allowed me to peer into Reggie's office. It it my theory that the size of this portal will increase as I increase the number of Nintendo network-capable devices connected to my local network - eventually allowing me to step through the portal into Reggie's office. Therefore, I must obtain additional Nintendo hardware. For science.