FYI- I had success last night installing and booting windows from a revodrive x2 on my mac (early 2008 mac pro with the PC BIOS in AHCI mode). I did have to put the bootsector and bootloader on a regular SATA drive so that REFIT would see a windows boot device and kick the mac into BIOS mode. Once it's in BIOS mode, though, the windows bootloader sees the windows installation on the revodrive and boots successfully. Sure is fast!
