People are still forgetting that there is nothing concrete going on with the "exploit"
even if you get more access, a 3d driver for linux will be very hard to write that's 1
and second if gameOS is encrypted and the keys can't be obtained by SW means than it's pretty useless that's 2.
and I remember at ps2dev there was a pretty big list of undocumented hypervisor function calls, what good If you can get some more without information?