No reason not to try it though (you'll probably be able to boot from a USB drive). I can see why people are saying that Windows will remain their prime OS, but this effort needs to be supported. Over the long term, this is the only option for PC gamers, since Microsoft is clearly moving towards a closed system approach for Windows.
Don't know why I didn't think of the USB, haha. Hopefully that's the case. If not, I'll still try it out, I just hope they get a level of support that can rival Windows.