Yeah, alot of his info is off but the fact is that the GC has linux and if there is some exploit to the Wii..it will be either via it's WiiConnect24 downloadable updates or GC backwards compatibility...
I imagine the laser POT can be tweaked to read DVD-r's just like the GC's could be...
If a DVD-playing Wii is released in Japan, then no tweaks will be needed there.
Just look at how the PSP has been exploited via it's updater...
Heck, I wouldn't be suprised if I could solder in my Qoob Pro in there and launch code from my SD card...
I also see a XenoCD drive chip in Wii's future...
Now, this Wii Startup disc that comes with the system is quite interesting... Someone needs to stick it in a modded GC and stream it to an ISO and hope that it's less that 1.4GB of useable data on it.