Its not really a port. The game was developed with both the Xbox and PC in mind, and we spent the last many months adding in all the PC specific options, cranking up a number of the textures and all the other goodness for the PC version.
It really doesn't look much like the Xbox version, control-wise. Heh, I need to go get some sleep...
Derek French
Producer, Live Team
BioWare Corp.
Derek French
Live Ops Producer
Beamdog