It is the XBox version. As far as I know beth didn't release a PC beta demo. I think they're worried it would be leaked on the net.
However the PC version will be very similar if not exactly like the XBox version. They're gearing the PC version to work with a keyboard and mouse. PS3 I don't hear anything good coming to them about FO3.
Anyhow To keep the peace I won't say anything more negative about FO3 and Beth for now.
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