From what I heard, OS X uses certain low level functions that control processor speed/voltage within the OS itself versus what conventionally would be done through a BIOS on a normal PC. Apple uses EFI... I know that. Just reading about some of the "dangers" if using a Mac to run Linux... main reason being, you have a likeliness of damaging the CPU if all you run are intensive tasks under Linux. Apple wrote drivers that deal with this stuff under Windows.

Please lets vote Turnbull in, enough is enough (already)

If a Double Dissolution happens Turnbull (or another Lib, I doubt Turnbull could run) that might just happen, so long as no-one utters the words "work choices" they should get in.