One afterthought: at CES, Sony did say they'd be releasing a software/firmware update soon which would include Vista support. Given that there are a number of
signs that the update is fairly imminent, those less hearty souls (who aren't quite sure they want to mess with a work-around) might want to wait a week or so and see if it materializes. When it does we'll probably all want to upgrade regardless, since it'll hopefully be a good bit stabler than the current incarnation.
All that being as it may, I don't mean to diminish what adamb78 has done, it's still an excellent bit of
finagling, by any measure.