Nintendo’s plan is to make a separate hard drive partition for each DVD game. Once games are saved on a hard drive, the Wii reads a directory and shows all available games with box art. This is done by accessing a virtual DVD partition on the hard drive. The interface also displays ESRB ratings and the patent mentions possible parental controls.
Here’s a flowchart of the system.
Seems like Nintendo has a plan in place for streaming Wii games from a hard drive. The question is will they release it for the public.