Looks like this contains the voltage fix Alex Deucher wrote to hopefully get NI working.
Phoronix: Linux 3.0-rc5 Kernel Release Brings Various Fixes
Linus Torvalds has released the Linux 3.0-rc5 kernel on this Monday evening. Around 25% of the changes in this week's release candidate are driver related while file-system changes account for nearly half and the rest of the work is scattered throughout...
http://www.phoronix.com/vr.php?view=OTYwNg
Looks like this contains the voltage fix Alex Deucher wrote to hopefully get NI working.
As for the power regressions, if they are not fixed by time 3.0 kernel is released I am sure someone will whip up a patch much like that famous 200 line patch that helped improve desktop performance.